and too bad that the space has limits (it could warp), that the shielded ships explode on contact (our ship could bounce), that the money disappear too early and is hard to collect, ...
too bad that the enemies appear too close, that the ship repair takes no time and its cost grows up, that there is no levels where you enter the shop with no enemy on the map...
but good music, good graphics, nice gameplay, fun upgrades.