On one hand (the one holding the pencil) this game is GORGEOUS. Not only some of the best graphics on the Sega Genesis, but some of the best graphics in a 2D game I've seen! It really does feel like a playable comic book, and the animations don't cheap out either as this is some of the most fluid 16-bit movement you'll get, on par with the Genesis Aladdin's animations easily. There's also humorous speechbubbles and you even see your playtime when you pause.

Unfortunately on the other hand (the one holding the controller) the gameplay is still fine but the combat feels mashy despite the wide range of skills Sketch has access to. But maybe that's just me being bad. What isn't me being bad is the game's obtuseness with what you're supposed to do at times. A lot of the solutions involve using your rat friend but the game won't tell you that beforehand, and just knowing about Rat isn't enough in some situations, one I remember was a switch for a lava platform that was so confusing I just damage boosted past the puzzle.

I think if Comix Zone ironed out its gameplay a bit, it would have been far more successful, but as-is it's simply a hidden solid title to play from the Sega Genesis library, and a recommend for anyone who loves sprite animations and gorgeous sprite work in general.