Gumby

He once was a little green ball of clay, but you should see what he can do today! He can go into any book, with his pals, Pokey, Prickle, and Goo. If you've got a heart, then Gumby is the pal for you!

Goin' Green
Gumby defeated The Mask in the first round, but was elimintaed by Mojo Jojo in the second.