Sounds very much like Wizkid, which was released on the Amiga and PC. It was the sequel to Wizball.
http://www.giantbomb.com/wizkid-the-story-of-wizball-ii/61-11576/
Could it have been Thing On A Spring?
Not that I've played it, but it's the first thing I thought of since he was a mainstay character in Zzap! 64 magazine... :)
After randomly finding the game's main character on a pack of sweets, I know the game is called Muncher Eats Chewits.
http://www.lemon64.com/?mainurl=http%3A//www.lemon64.com/games/details.php%3FID%3D3942