well. you have to run horizontally, jeekily animated, through colorful - but not special - backgrounds, destroying robots, hovering (you have a jetpac or something) to higher corridors and platforms, and avoiding laser cannons. you have two weapons, and you lose a life when your energy ends. i don't know exactly that the aim is: i arrived at the end of the landscape, and nothing happened, i tried to go back (which it's possible) but died after some seconds. the game is confusing. there's a costant flow of robots coming out of nowhere, and it's impossible to dodge them all or shoot'em all, so that it seems almost useless trying to. apparently, the laser cannons can't be destroyed (or, anyway, i'm not able to), so you have just to suffer their fire.
suffering, in fact, is what you mostly do throughout the game.
