River City Ransom EX Cheats

At the left corner of Reihou's Roof, if you're carrying someone and they jump off straight down then they will fall down through an invisible hole and dies. (Works even on Slick)

Usually Slick will instantly kill any Zombies in your gang, claiming that it's "not their fight." As soon as he kills them, leave the screen and come back, they will reappear in your gang and you can have the extra support in beating Slick!