Sprite Sheet and question

I didn't put it there because I'm asking for advice of an ability, not advice on how to improve the sprites or anything. But where could I put this anyway
Ah! Well, by the slots stuff I mean it's just the plain and simple Slots that Setzer has by default, the only difference are the names, which are changed to fit the Nerd's theme. Like, H-Bomb is now F-Bomb ("Time to start droppin' some F-Bombs!" from the CDi reviews) and stuff like that. Man, that's some pro hacking right there.

I was thinking maybe an ability that has a 20% chance of being either of the attacks that can be used by Slots (Lagomorph, H-Bomb, Chocobop, etc), but I have no idea of how to make that.