Simply wonderful game, good story, good gameplay, and for the most part extremely balanced. (the 2nd to last gun is too strong and the last one is too weak power for price). I think you should take this game to the next level, you've already set it up so that the people can shoot backwards, why not more guns, more enemies, more maps?
This is a really great game. very challennging but fun. 5/5 but i found to things though.
1: I have no idea how, but the crazy frog like song just randomly played while i played the track game and threw me off time. and
2: on the track game i find the left then down immediatly maneuver is impossible.
Love the music.