I was thinking of making a fan game for that in the past, but if it doesn't get added officially I may figure out a way to make a mod for this game instead.
That was painful but fun! Levels 14 and 15 where a nightmare to get right. I can totally see this being expanded into a full game. :) The controls reminded me of Red Remover BLAST. Also, my best time so far is a 03:17.576