Oh, no...not again!
Worth noting: you have to beat the game in one sitting. No wonder this game frustrated me back in the day.
Also worth noting: The game is based on both the book and the movie. If you're wondering why you go into a ship in the game, that's why.
Also also worth noting: the fact that GameFAQs does have maps for every area in the game, including the Zelda-esque overworld in which you go from one indoor area to another. Thank you, Starfighters76. What would I do without you?
Even though you can do all six missions in any order, we're going in the order that the game mentions them, simply because I can.
The best ammo you can get are the rocket launchers (primary, fired with the A button) and the explosive bolas (secondary, fired with the Y button). They're the things that look like bumblebees and the things that look like a group of three black iron balls, respectively. Pick them up, no matter what, as the game lets you stockpile on ammo. To pick up items in the overworld, stand on it and press the X button. If, for some reason, you need to switch back to the cattle prod (those electric gates, man), just press Select to toggle back and forth between the rechargeable cattle prod and whatever special primary weapon you have. You can carry only one special primary type and one secondary type at a time.
Primary: Shotgun shells, Tranquilizer Darts, Rocket Launcher
Secondary: Gas Grenades, Explosive Bolas
The Compies are really easy to destroy. All you need to do is hit them with your cattle prod and they'll die in one hit. The spitters and the raptors are a little harder. You're better off using your special primary and secondary weapons on them, as hitting them with a continuous cattle prod shot will take time.
From the start, go south through the forest. There's the Nublar Utility Shed area right there. The building should be a little further to the south. Touch the door and you'll automatically be whisked inside. If you need to, take the stairs to the roof and get the bolas, but watch out for the raptor that jumps out at you from below. Also, don't touch the electrical grid in the center. You will electrocute yourself.
Also near the building is a motion sensor. It's that grey thing that looks like a lamppost. Whenever you touch one, you'll get mission objectives. Be careful when reading the messages, as you'll still have to fight dinosaurs while you're reading! Also, touching one acts like a continue point. If you die, you'll go back to the last one you touched.
There are white letters scattered throughout the game. They all spell "Dr. Horner," a real-life American paleontologist who partly served as the basis for the Dr. Alan Grant character, was one of the first paleontologists to find proof that dinosaurs cared for their young, and also served as an advisor for all of the Jurassic Park films.
On to the shed. You could just go left, enter the first door you see, and keep going straight while taking down any dinosaurs you see and just simply turn on the generator and destroy just a few generators. But no...we're going to pull some dinosaur genocide because we can.
The spitters and the raptors are the only enemies you'll see here, and they'll just stand or walk around until you get close enough. Thankfully, you can pick them off from a distance if you can see them. I have to admit, this is impressive for Super Nintendo, even if the indoor view doesn't cover the entire screen and you see it only from Dr. Grant's "eyes."
If you go right at the beginning, you'll find a battery. This will power up your Night Vision goggles for the area, and will only work in the area that you found the battery in. Going in a dark room without one will kill you instantly. These dark rooms will carry some power-ups, and sometimes also carry ID cards of various Jurassic Park personnel (some from the movie, some from the books). Sometimes you'll find a door that triggers a message saying "You need So-and-So's ID card to access this area." That ID card will be in a different location entirely, so scan around whenever you're in a building. Thankfully, that's where the maps on GameFAQs come in.
You may notice a computer in one of the rooms. We won't be dealing with that right now, since it isn't working anyway.
The raptors will attack if they're hit with a non-explosive weapon. (This is why I usually choose the explosive ones, since there's no way I feel like dealing with that in the first-person areas.)
The room with the generator has a few of those green spitters in there. Thankfully, those guys never move (unlike the raptors) and they only use their spit attack when you're close enough to them, so take your time and pick them off with any non-cattle prod weapon you have.
There is also an elevator that will take you down to the sub level. One of the doors here is locked and can only be accessed with Ian Malcolm's ID Card. You won't be able to get that until you enter the Raptor Pen, which isn't until later. In that room, you'll find Donald Gennaro's ID Card, which will come into play later...
Northwest of the Nublar Utility Shed is a small mountain you can walk around. Go up it and get the egg over there. While you're over there, stay away from the boulders. If one falls on you, it's instant death. Thankfully, if they split into three, the worst the pieces can do is trip you up and take a little bit of your health away.