They say that unlike Sonic, Knuckles doesn't chuckle and would rather flex his muscles. Though, looking at this Knucklehead's poor collision boxes and moveset, a player may chuckle at this Knuckles' ability to not even flex a single muscle due to it being a spriteswap of MUGENHunter's first version.
This version of Knuckles is a spriteswap of MUGENHunter's first version, though many of the collision boxes from the original version have been kept; the character's stats are identical to the stats of MUGENHunter's second version of Knuckles, however.
Like the original, Knuckles has low comboability due to most of his moves being rather slow to pull of good combos with. Though, individual attacks are quite powerful; allowing Knuckles to gain easy victories in only a short amount of time.
Also like the original, Knuckles does not feature any sort of custom A.I., instead using the M.U.G.E.N default. The A.I would typically just walk, jump, guard and occasionally pull off attacks.