Believe it or not, Jurassic Park got a game on the Sega Master System. This one ends up being a little more interesting than the NES version and also takes liberties with the movie script, apparently.
When you start the game, you'll see Dr. Alan Grant landing in Jurassic Park, where people are falling victim to dinosaur attacks after the security system started malfunctioning, leading to dinosaurs entering areas of the park that they're not supposed to go to. We then see Alan Grant drive into the park to secure these areas before the park can open.
When you reach the map screen, you'll be able to choose one of four areas: Velociraptor, Pteranodon, Triceratops, and Brachiosaur. The Visitor's Center will be the fifth and final area you can enter, but you'll need to beat all the levels without using a continue in order to enter it, or else the game will tell you to try again.
Velociraptor
All of the stages start with a driving section. The D-Pad allows you to move the target reticle, while Buttons 1 and 2 both shoot. I alternate between the two buttons to pump all the dinosaurs with more firepower with less effort.
The Compies that run at you are pretty easy to shoot at, but they will jump at your vehicle and eat at your health, which is in the lower-left corner. Defeating enemies will allow you to pick up one of three pick-ups: a blue potion that refills one hit, a gas canister that increases your health by one point, and an Alan Grant doll that gives an extra life. You can have up to five hit points, and you're only going to get one shot at getting an extra life in the driving sections, so pay attention.
Rocks will cause you to lose control of your gun temporarily, but if you shoot at them, you'll always get a blue potion. This is useful, especially against the bosses.
The first boss is a pterodactyl. The game will tell you to shoot in the face, so do that as it dives at you so you can knock it back. If you get hit, shoot down a rock in the middle of the road for a blue potion. The boss' health will be in the upper-right hand corner, and when you beat the boss for the driving section, you'll go on to the next part of the stage. If you have maximum health at the end of a boss fight, you'll get a 1-Up for it, even if you got hit and healed up with the blue potions from the rocks, so keep your health high, because it's worth it.
Now it's time for the side-scrolling section. When you pause the game, you'll be able to see your current score, your current amount of lives, and your current amount of continues. You'll also be able to use a first-aid kit to completely heal yourself if necessary, and you can switch between one of three weapons: a shotgun that fires forward, a rocket launcher that shoot upwards at an angle and sends two fireballs to the side, and a firebomb that can be thrown at an arc. You can find first aid kits in a few spots throughout the game, but they are few and far between, so you'll want to save them for when you really need them.
As Dr. Alan Grant, Left and Right on the D-Pad let you move left and right. Down-Left and Down-Right on the D-Pad allow you to crawl. Button 1 lets you shoot your currently equipped weapon and Button 2 jumps. If you leap into the underside of a platform, you can hold Up on the D-Pad to grab onto that underside, then press Left and Right to shimmy your way across the underside of the platform. Pressing Up in this situation allows Alan Grant to pull himself to the top of the platform.
You'll need to do some shimmying to get across the bridge at the beginning of the stage, and you'll also need to time your movements so you don't get fall into the lava as the bridges fall apart. You'll also want to avoid the electric spark that travels across the top of the bridge, as it will damage you.
The ground will start lowering Contra-style after you cross the first bridge. Use the rocket launcher to take out the pterodactyls and grab the coins and power-ups that they drop. If you collect ten white coins, you'll get a continue.
For the second bridge, you'll need to move forward at the right time to get past the lava plumes that rise and lower as you cross. For the last set of lava plumes, go to the right as soon as the one on the far left starts going down. There is a timing, and it can be a bit tough to gauge, but it can be done.
If you can enter a door, Dr. Grant will look at it, and you can go through the door with Up on the D-Pad. Be ready to use the rocket launcher to take out the pterodactyls and get their pick-ups. The yellow platforms are the ones you can stand on; the orange ones are the foreground.
The elevator to the right leads to a red potion (which heals two units of health instead of one) and a first-aid kit. The elevator to the left leads to the rest of the level. You'll want to time your movements correctly to avoid being hit by the sparks that are moving about.
There is a red potion in the upper-right corner of the entry room; you'll want to grab that. The door leading to it will open when you get close enough.
For the second room, you'll be dealing with Raptors. Use your shotgun and firebombs to take them out from a distance and from above, as they take off two units of health when they hit you and they can be relentless. There are a few red potions (the game's manual calls them "medicine," but I keep calling them potions) littered throughout this second room, so be ready to grab them.
You'll have to stay all the way to the sides to avoid the blasts of lightning coming out of the walls. After avoiding all that, you can climb across the ceiling to the left for an extra life. You'll have to backtrack, but at least the enemies don't re-spawn. After doing all that, the second elevator will go down. Stay to the sides to avoid getting zapped, then enter the door at the bottom to fight your first main boss.
To beat the Velociraptor, stay at the bottom center of the screen and watch which doors open. If the Velociraptor comes out from an upper door, equip the rocket launcher from the pause menu and hit him from below; if a lower door opens, use the shotgun. As long as you stay in that one spot, the Velociraptor will keep coming at you, but you'll always be ready to shoot it down. It won't be long until you complete this stage.
Pteranodon
The pterodactyls will fly around in the background before eventually flying above your car. Be ready to shoot them down, especially if they're about to divebomb into your car.
When the Pteranodon shows up, keep shooting at it. This will cause it drop the rock that it is about to drop on your car early, then keep shooting it as it divebombs so it doesn't hit you.
In the action stage, you'll have to go through a series of doorways to get to the upper-left corner, take the zipline, and head to the next area. Thankfully, figuring out which doors take your where isn't particularly difficult. Just watch out if you approach the left side of the screen, as spitters will show up and try to hit you with their projectiles. If you see one show up, duck and shoot with the shotgun so the projectiles go right over your head.
The Jurassic Park icon is a commemorative coin that gives you a few thousand points, according to the manual.
While using the platforms that move back and forth, you may have to duck under ceilings as well as climb on ceilings in order to stay on the platform or keep up with it. Remember that you can press Down on the D-Pad to drop back down onto the platform from the ceiling.
When you reach the zipline, watch out for boulders. Hold Up while you jump to grab the zipline, and don't press Down until it comes to a complete stop. Once you take the zipline, you could go back to the exit, but you can also explore the area below where you land for an extra life and a first aid kit. Keep climbing across the ceiling to get the extra life, and use the rocks to make your way back.
In the second action area, equip the rocket launcher and fire at the pterodactyls when they dive at you. Eventually, the ground will start lowering, and you'll need to keep moving in order to get through this part without losing a life.
To beat the Pteranodon, equip the rocket launcher and be ready to fire at the Pteranodon when it is above you. The Pterandon may dive at you; the rocket launcher is perfect for a counter-attack. Remember that you can grab onto the undersides of the tree branches and pull yourself up in order to keep up with the slowly scrolling screen.. If you have to duck and shoot when the Pteranodon gets too close, do it. It'll keep the Pteranodon away for a short while. Eventually, it will go down, and you'll have two stages left.
Brachiosaur
The Compies will be coming at you in the driving section. If they don't land on your car, they'll land on the ground...and then they'll come for your car. Be ready to shoot them down, and if you can shoot one out of the air, that's even better. To beat the mini-boss here, you'll need to keep shooting at the head. This will keep the big dinosaur here from charging towards your car and ramming it.
Now for the action stage. At the start, tread carefully, as enemies will pop up from out of the water and they will get you if you're not careful. If the dinos that jump out of the water are at your level, duck and shoot with the shotgun; otherwise, use the rocket launcher.
Once you get into the building, things get a little more interesting. The raptors here will jump at you if you're at their level. Your best strategy is do duck down and throw the firebombs at them if they leap at you; you'll him them every time if you're right across from them. If you're really far away, you can plug away at them with the shotgun. Also, be sure to climb on all the ceilings you can, as it will allow you to grab a few first aid kits before you enter the next area.
For the third area, you'll need to fire the rocket launcher at the Brachiosaurs to keep their heads away from you as well as the Pteranodons that fly at you. Once you get on the raft, it's time for the boss battle.
To beat the Brachiosaur boss, equip the rocket launcher, and watch for the bubbles to see where it will surface. When it surfaces, jump up and fire the rocket launcher to hit it. You'll want to avoid the Brachiosaur's head when it drops down after you nail it.
Triceratops
For the driving section, you'll have the Compies, just like in the Brachiosaur level. Be ready to shoot them down as they come for your vehicle so you can get them out of you way. The boss is also much like the last one, but this one in particular is a Pachycephalosaurus and has a different shaped head. The same strategy still applies, though: just keep shooting at the head, and it won't smash your vehicle.
Now it's time for the action stage. Duck down to avoid the tornadoes, and use the holes in the ground created by some of the lightning bolts to avoid and crawl past some of the tornadoes. After the tornadoes, tread carefully, as there are some dinosaurs that will jump out of the foliage in the background. These dinosaurs will take two hits, and you'll need to be ready to shoot them so they don't run back and forth.
In the second section of the action stage, watch the top of the screen, as there will be white and yellow dinosaurs that will drop down from the treetops to charge at you. Thankfully, they only take one hit to defeat. When you get to the big tree, lightning will strike, and you'll have to deal with a whole lot of fire. At least you'll be able to get around inside the big tree. Jump around and get the extra life and the red medicine, and watch out for the moving fireballs. You'll also have to shoot down one more white and yellow dinosaur at the end.
In the third section, you'll be dealing with more of the same from the first, but you'll now have to watch out for lightning hitting the water. The lightning will move in two directions in the water, and you'll need to jump over the sparks to avoid getting shocked. Grabbing onto the underside of the tree branches really helps in this section. Be sure to get the medicine in the trees if you need it. After this, you'll have a few white and yellow dinosaurs to shoot down, then it's time for the boss.
To beat the Triceratops boss, head all the way to the right and stand on the branch. Jump before the Triceratops hits the tree with its charge attack, then stay there as the triceratops kicks the dirt clods up. The Triceratops will leave, then charge at you again. This time, it will stop short of the tree and send a dirt clod your way. Jump over the dirt clod, then shoot the Triceratops in the back with the shotgun. When you score a hit, get back on the branch before the Triceratops hits you with more of the dirt clods that it sends your way. From here, the Triceratops' attack pattern will repeat.
If you used a continue at any point in the game, the game ends here, and you'll be told to do better before you can play the final stage. If you managed to get through the first four selectable stages without having to use one, you'll be able to head to the Visitor Center for the final level.
Tyrannosaurus
You'll have to deal with even more Compies on the way to the boss battle, which is the same as the one from the Triceratops driving section. Just keep shooting the mini-boss in the head and you'll be fine.
After a brief cutscene were you see Dr. Alan Grant run into the visitor center as other people flee, you'll start the action stage. Be ready to look around and enter a lot of doors to find your way around.
Use the rocket launcher to destroy the turrets above you as they move about and occasionally fire. If you see a metal door in the background, move slowly towards it, and when it opens, equip either the shotgun or the firebombs and prepare to duck down and attack at the raptor.
If you see any holes in the walls, there will be big dinosaurs behind them ready to gnaw at you when you get close enough. Hit them with the firebombs to take them out, and avoid picking up the red coins, as they take a continue away from you. You can also use the shotgun, but you'll need to land three hits instead of two.
The laser shooters that shoot straight down fire in a pattern, although you can more or less blaze through that segment.
The inside of the Visitor's Center is a game of two halves, and you'll need to go between them in order to get to the lower-left corner of the center. Thankfully, it's pretty easy to keep track of where you're going as you go from the bottom center and circle your way to the lower-left, as you don't wildly change location when you go from the "brown" part of the center to the "blue" part. If you're in one location in one "half" of the center, you'll end up in that same location in the other "half" when you go through a door.
When you reach the bottom of the blue half of the Visitor's Center at the lower-left corner, only one door will take you to the Tyrannosaurus boss. The rest are one-way and will force you to start the whole trek over. The door you want to enter is the last one before the raptor and the blue medicine. Entering that one takes you straight to the boss.
To beat the Tyrannosaurus boss, you'll need to equip the rocket launcher at shoot at the boxes above to send them tumbling down. If any of them hit the Tyrannosaurus in the head, that will damage it. You'll want to avoid the boxes that come down near you when it stomps, and you'll also want to be ready to heal yourself with a first aid kit (to do that, pause the game, move the hand to the first aid kits, and press Button 2) when you get down to one or two hits point, as the bite attack when it gets close to you at the left side of the screen can be next to impossible to dodge.
When you beat the game, the ending ends up being different from how the movie ended up. Instead of the park being abandoned by Dr. Alan Grant and everyone else, the security system is fixed and everything is secured, and Jurassic Park ends up opening to the public and everything is good and peachy and nobody suffers consequences for their actions at all. But hey, we've finally beaten Jurassic Park for the Sega Master System!