Glitch report: leaping out the side (yes, side, like left or right relative to the floor you're running on) allows you to float past *huge* sections of levels, assuming you can get back in.
I like the game, but I have one problem with it. In each game you can get a max of 100 crystals, with maybe some from challenges. But everything costs so much more; it took me literally 3 days to get the Shaft gun.
Best weapons I use are Punisher (sidearm) and burster (close-range). You get them really early in the game. Burster not only sets people on fire, but because it bounces, it can work as a fire mine. It's also a one hit kill to most enemies. And Punisher is as good as a sniper, and will two hit kill most enemies.
 "Super Karoshi"){kind=icon}
 "Amorphous+"){kind=icon}
 "Bloons TD 5"){kind=icon}
 "Run 3"){kind=icon}
 "Tanki Online"){kind=icon}
 "Raze 3"){kind=icon}
Did you get the achievement for it?