This code will give you a bazooka in every level. The code is: R, R, R, B, C-Down, Z, C-Left, and L.
Get More $$
To get more money in the game roll around the walls. Walk up to the wall and start rolling. Make sure you roll against the wall and not just by it. Money should come out. We know this sounds crazy, but it works.
Get Guns Every Level
To Get Guns Every Level except th first- just go through the
exit door on every level you beat. You will then start off with a
gun in the next level.