Flopper

A Flopper is the weakest type of Slugs. They are very lazy. They also can shoot a trail of smoke behind them like a Flatulorhinkus. They don't transform but they are useful in a pinch such or when you don't have a slug. Eli Shane has one he has named Noodle, which was the second slug he obtained. When they hit something they splat slime. One popular use for Floppers is accuracy training or sparring as it can't actually hurt an opponent.

Moves
Stretching: Floppers can be stretch into useful things like tripwire, or to tie someone or something.

Slippery: Floppers are extremely slippery, so you can slip someone up by throwing a Flopper in someone's way so they slip like they slip on banana peels in old cartoons.

They can also be used just to shoot in case you need to block someone's blaster to backfire it, or just to push another slug out of the way. There can be many uses for a Flopper.

Appearances
In The Beginning, a Flopper can be seen as one of the slugs Twist plans to turn into Ghouls.