Here's Teenage Mutant Ninja Turtles' Mondo Gecko again, possibly gleaming the cube. I dunno what that means but it's the name of an '80s skater movie so it may apply.
this was one of the few characters I remembered fondly, and then I found out "mondo" was a genre of movies that was the Italian answer to "Faces of Death" (though predating it by decades)
Link
SonofEarthLtd
That is so freaking cool!