On lvl 2 of wpnfire how do you get past the cannon guy?

Easy. You know the bridge? shoot the bombs below it. It explodes the bridge if you shot enough, and the bridge breaks. Go into the hole and continue the game.

Happy to help :D

YES!!! TY Paradox!

No problem :D

Sucks that it only has 2 bosses on adventure mode.

ARAGH!!! Now I'm bored with the game.