Well here's the sports equipment wielding, bad guy bashing, friend of the Teenage Mutant Ninja Turtles, Casey Jones!
My favorite line about Casey was from the 1990 Ninja Turtles movie when he shows up at April O'Neil's appartment to fight the foot clan alongside the Turtles, and Leonardo asks "Who the heck is this?" and Michelangelo replies with "Wayne Gretzky? On steroids?"
Posted below is an alternate world version named "Punish", done for some young guys I've mentioned before who have their own project/story called "Marvel Mirage" where they merge the Marvel and TMNT worlds. Cool ideas again, guys!