Like a lot of space-style games, the idea is to shoot things!
However, there's more to it than that. There are 225 levels, arranged in a 15x15 grid. You start off in the centre, and it is up to you what order you complete the levels in order to finish the game. There is one rule, though - you can only play a level that is direcly adjacent to a level that has been completed. This means that you can only play the centre level, and once this is completed (it's fairly easy - so you can get used to the controls), you can complete the 4 that surround that.
You can buy upgrades to your ship - for example, you can make it fly faster, turn quicker, make it more controllable, more (and different) weapons, weapons cooling systems, energy generators, energy bombs and so on.
-- Copyright © Jason Tribbeck 1994, 2002-2004 --