I just found a series of online games called Grow (Grow, Grow RPG and Grow Cube). http://www.eyezmaze.com/grow/v3/index.html I was very impressed with their originality. They look like a lot of work to make. Do you think a game with 20 grow style levels would do well on the portals? I don't think the game would have much replay value once you get the solution. I guess this would be classified as a puzzle/toy game.