...and now, a regular game of Alien minus the commentary! Enjoy!
Alien for Atari 2600 is a Pac-Man clone based on the 1979 sci-fi movie of the same name. Playing the game is pretty simple: reset the game to start, then move the joystick to move your character while avoiding the three aliens (which barely look like Xenomorphs) that move around the maze and collect all the dots by walking over them to complete the level. Of course, given that this game is based on one of the most influential American sci-fi films of all time, what you're really doing when collecting the dots is - get ready for it - destroying alien eggs. Gotta figure those facehuggers into the story when they don't show up in the game at all. There's also the occasional pick-up just north of center of the maze that is worth a couple thousand points. You'll obviously want to grab these things without risking losing a life if you want to go for a high score.
Aside from being able to move around much like you do in Pac-Man, you can also fire a flamethrower at the aliens with the fire buttons. If you're about to run head-on into an alien coming at you, a well-time fire button press will deter that alien and get it away from you for a second. It only really works when you and the alien are facing each other, which never really happened for me that often, as I've come to find out after playing this. You can only fire the flamethrower to the left and to the right. The flamethrower also has limited ammo, and once you run out, you won't be able to use it again until you clear the screen and head on to the next one.
You also have a few other tools along the way. There are three pulsars, which look like red asterisks and only show up one at a time at the very top center, which work just like the Power Pills from the game that [i]Alien[/i] is based on: you grab one, the aliens turn blue, and if you touch any of them before they flash and change back to their normal colors, you get bonus points, and if you touch all three before that can happen, your score will get seemingly exponentially bigger. They only really work on the first two levels at best, as invincibility time goes down sharply the longer you go. By the time you reach the fourth screen on the first game variation, the Power Pills will stop working completely, and you won't even be able to use them to get those last few alien eggs that are being fiercely guarded.
You also have the tunnels on the sides of the maze. You can use them to wrap around the screen, but so can the aliens! Also, in another example of what the enemies can do here that they can't do in Pac-Man, the enemies here can also double back without warning! You could be right behind an alien only for the alien to suddenly turn around and get you. It's best to give them a wide berth if you can help it.
When you complete a level, you'll enter a bonus area. Up and Down on the joystick will allow you to move up and down, which are the only two directions you can move in on these bonus stages. If you run into an alien, or if you take too long, the bonus level ends. If you can get to the object at the top of the screen, you'll get a couple thousand bonus points.
The left difficulty switch changes the direction in which the aliens travel. B/Novice has the aliens move in fixed patterns, which you can probably figure out if you sit there and watch them, while A/Expert has them move in random patterns.
The right difficulty switch changes the effects of the pulsars. On B/Novice, they work much like the Power Pills in Pac-Man. On A/Expert, they don't work at all, effectively making the right difficulty switch the on/off switch for the pulsars.
There are also four levels of play that can be selected with the Game Select Switch. Level 1 is the normal game, where you start with three lives and get a bonus life after clearing the second screen. Unfortunately, it will be the only bonus live you'll get, and this and Level 4 will give you only one bonus life to grab and no more, no matter what. You'll also get the prizes in the normal chart order from the manual: the rocket, the Saturn, the starship, and then the surprises. The fact that bonus lives are tied to progress and not score is interesting to me, since that's not something that I usually expect an Atari 2600 game to do.
Level 2 is the advanced game. It is the same as Level 1, but you start with two lives and you don't get any bonus lives at all. Level 3 is the expert game, which has the three lives from Level 1 and the lack of bonus lives from Level 2. Also, all the prizes are Saturns and are worth 1000 each.
Level 4 is the practice game. You'll start with six lives, and you'll earn a bonus life after clearing the first screen. Just like in Level 3, all of the prizes are Saturns.
Despite being loosely based on the movie of the same name, this is a pretty interesting clone of Pac-Man. The flamethrower adds a little bit of variety to the game if you can use it correctly, and the bonus stage between levels briefly breaks up the monotony. The graphics are pretty easy to see against the dark background, and I like that the eggs you're collecting/destroying cycle through the spectrum of colors that the Atari 2600 can display. There are plenty of Pac-Man clones on the Atari 2600, and this is one of the good ones.

