Not too bad.
Put some planets in there, because "drunk astronauts" (like myself) tend to... Ahh... Go a bit crazy with speed.
OR! You could make it multiplayer and have these "drunk astronauts" (again, like myself) crash into other people. Mwahahahah.... Twisted Metal in space!
Don't forget some type of nuclear bomb that will make little green and blue aliens come and attach onto your ship so you can't see!
Er I'm running out of ideas now.
Kaimetsu: You know that voice in the back of your head that says "Kaimetsu... make... multiplayer..." ???
Listen to it.