Everything you need to know to play the game is included in the included EAQ
(Excessively Asked Questions)
This game runs on any version of Windows. It requires the .NET and XNA frameworks. Not sure what this is? No problem. This is explained in detail in the included documentation.
Just let me know in the contact form below and I'll be happy to help.
Your space ship is damaged. You must work your way through randomised stages to collect the Krypton crystals which have been left floating around due to the damage. The objective is to get a high points-per-stage.