Fourfists

Fourfists is an alien in Sean 10: A New Generation. He is a Muscleran, a direct descendant of the Tetramands, from the ancient planet Bicepos.

Appearance
Fourfists is a fairly tall bipedal, two-eyed alien with no skin. His veins, arteries, and muscles are all visible. His top two arms are extremely muscular and his bottom two arms are average. His Codonatrix symbol is on his chest. When he increases his muscle mass, his color changes from pink to blue.

Powers
Fourfists has all the powers of a Tetramand, due to him being a descendant of one. He is extremely strong, and can become even stronger by expanding the muscles on his top arms, lower arms, or legs. He is an expert in hand-to-hand combat, and by making his legs more muscular, can jump really high. He is fairly durable and can take as many punches as he can give. He also has increased speed and agility, about on par with a professional runner.

Weaknesses
Due to Fourfists having no skin, he can get sick from infections easily. His main weakness is burning materials like fire or acid, which he doesn't stand a chance against. Also, similar to almost all other Codonatrix aliens, Fourfists can't use his powers to his full extent and expand all of his muscles at once, or the Muscleran part of his mind will take over.

Personality
When Sean turns into Fourfists, he tends to look forward to the fight. He refuses to talk things over and prefers settling disagreements with his fists. He also gets overly excited if he wins a fight.

Trivia

 * Fourfists is Sean's equivalent to Fourarms.
 * There is a limit to how much Fourfists can expand his muscles, which has yet to be seen.