Sandy Cheeks - High intelligence level with strong punches and can lift an anchor
Sheldon J. Plankton - Controlling a robot with a spikeball as it’s left hand
Leonardo - Ninja with dual swords. Leader of the TMNT
Team Umizoomi - Heroes with mathematical powers, the blue one has a sword
Kenny - Immortal
Wendy - Has beaten Cartman in a fight and has above average intelligence
(EDIT) Doodlebob - His pencil can erase existence of matter.
Baby Orange - Somehow more annoying than Orange himself. He is super stealthy and hard to catch and is known to cause traps wherever he goes
Soldier - He has a rocket launcher, a shotgun, a parachute, a set of melee weapons, and a banner that makes him even stronger, but is still dumber than a literal BABY, let a lone a FRUIT WITH EYES AND A MOUTH
Tanjiro - Uses the water breathing technique, though he gets injured easily, but has a headbutt stronger than most
Kyle - A child that has gone through a lot of trauma
Cartman - A child who is bulky
Pear - May be smarter than Sandy, but is still a
The Second Coming - Single-handedly stopped the universe from ending in AVM episode 30.