I thought this was a really cool game. I have always been a fan of shooting games, especially ones like this. What I appreciated was how there was a nice variety of enemies to fight. The sound effects were really good too and everything seemed to sync up quite well. My only annoyance is that there were two easy medals and the rest were hard. Still definitley a game worth playing.
It's hard to decide whether you should keep on firing or try to get the money. It's a much more complicated game than you think. This might just be because there's nonstop action everywhere. It was a great game that accomplished what it set out to do. The upgrades are nice too.