This game is one of the best homebrews I've seen.
A few things could make it better.
1 The forward and backward movement is hard to control, and the ship doesn't slow down by itself, so it's hard to stop moving.
2 Shields or hyper-space would be nice, as the UFO is too accurate.
3 Remember the last name entered for hi-scores.
4 The default.xbe isn't retail patched.
The movement of the rocks are good, and the ship fires good also. You used the rumble some, but not when the ship blows up.
I like this game for the most part, thanks MorseKode, it shows some good game making talent.