|Strap on your vector spacesuit, and hop into your vector spaceship. It is a good old ship, and it has seen a lot of action. From navigating the asteroid belt and blasting aliens around the sun, to attacking evil space cannons, your little vector ship has done it all, and this time it has been upgraded with twin blasters. You see the ship in Cosmic Chasm seems to be the same spaceship that is in every vector game. You control it using rotation buttons and a thruster button, with a laser and a shield button thrown in for good measure, just like almost every other vector game around.|
Now here is what you have to do. You guide your ship through a space fortress room by room. Each room contains a center section that slowly grows and will eventually trap you if you are not fast enough. You can shoot the center section to slow its growth. Each room also contains several exits. One of the exits will always spew forth a bunch of bad guys, shoot them, then exit to go to a different room. Between rooms you get to see an excellent tunnel animation. The idea is to make your way to the center of the fortress, blast the power core, and then leave. There is a map at the top of the screen to keep you from getting lost. This is a pretty decent game. It has a lot more to offer than the one screen of bad guys that most vector games have.
Game description from www.arcade-history.com