Very beautiful game with some solid mechanics. Sound balancing on some of the explosions is a little louder then the other effects, but its a very clean polished game. Theme seems a bit lacking as the barrel roll mechanic seems only partially needed. Also might just be me but I wish i had a bit more vertical play area, on the first boss. was hard to deal with those surfer guys cause i couldn't get a shot on them. Overall really great and if I saw this in an arcade I'd definitely give it a few quarters!