Gubble is a weird game that likely has it's roots in much older games from the depths of much of the dawn of the Games industry. Most directly, one could certainly point to Crystal Castles, but another strange influence that may be on the pages is Rock & Bolt.
It's one of those games that never left my mind due to it's alien nature and atypical premise; ever since I beheld a demo of it on one of countless shareware demo CDs.