Fish !! ( BOIBB / BFBOI )

Fish appears to be an anthropomorphic body of a grey fish.

Fish is really weird, and when a character gets eliminated they used to go to the Tiny Fish Chamber, but now Fish sucks them up.
He's short-tempered and provoked if bothered or interrupted.
He can be annoying and loud if he feels like it.

Additional Limbs: Fish is able to create as many limbs as he wishes for his benefit, whether useful (like to regain his lost legs in "Oh Geez, It Sure Is Crowded Up Here") or simply for fun (like when he uses his extra limbs to hold the girls tea-seat cup in "Ribbit Image Is Also Safe.").

Limb Extension: In almost all his appearances, Fish is shown being able to extend his limbs to his benefit. Whenever he does it usually, a sound byte of Leo saying "STRETCH" plays; and then in reverse when Fish retracts his extended limbs.

Elimination: by sucking up eliminated contestants or "eating" them. From there, the eliminated contestants are sent to the bedroom With Fish. It also appears to be an alternate plane of existence, because the contestants probably shrink.

Inception/Astral projection: Fish cannot only enter himself to talk to eliminated contestants, but is also able to still do that when he is already inside himself, as shown when he inserted his arm inside himself again to pick up Owl in "spin baby spin!!!!". His arm also appeared to be larger than normal, which suggests that anything that enters shrinks (except Fish).

Super-speed: Fish can fly at extreme speeds, as shown in "Let’s Get the Show on the Road!!".

Fish is bisexual.
Has anger issues due of his lack of taking critism greatly and may end up on spiraling out in anger and targets whoever is close to him.

Fish facing some harsh backlash after his contestants found out that the promised 1 million dollars isn't real at all
By then everyone would be switching up on him with Boxbot, for better hopes of this worthy prize unlike fishs