I play through the game.. lol made me laught that the final boss gave me 10k but I couldn't spend any of it.
2 problems to report:
1 Glitch with Boss 2, before he smashed down on me, he pops out that mine, it went all crazy and fell throught the screen a few times.
2 Glitch with Final boss, The dood just got stuck in the top left corner, the lower part kept fireing but it was too easy, I never had to me, because I could fit btw the fire and he wasn't even moving! lulz.
The add on upgrades are prety hard to get! but I like it that way.
good game :)