I really do like the weapon selection in this game, but I have a suggestion that would be good, but fair.
The Handheld Cannon is self explanatory as it is indeed, handheld. Now it could take any kind of cannonball, with a 3-7 reload time, to even out the fight, there would be a new kind of cannonball, the booze-bomb. When you shoot it out of a normal cannon, it wouldn’t do any damage to your enemy, but it would make them drunk! Unable to load or fight. If you load this into a handheld cannon however, It will just implode. That’s it.