Ball of Doom is a game made by Frostblood Studios (not listed on moddb). It features cartoon style graphics, a sense of humour, and Programmer Art? Who came up with that idea, I don't know. Anyway, I will release more content for the game in form of patches, and the level design... well that's ok-ish!
The Source and resources to Ball of Doom. Credit me. Also includes game.gmk file i used to make the game. CREDIT ME especially if you post the game as yours and use my files and level design with a few redesigns and say it yours.