Animal Antics
From Mario Fan Games Galaxy Wiki
Animal Antics was a collaborative effort with Excalibur2 of GMC and gamester of MFGG to create a perfect Donkey Kong Country engine. The engine ended up being scrapped, but gamester plans on creating a couple more minigames using the engine (Parrot Panic being one of them) The engine was also used in a bonus level in Normal Super Mario Bros. 2.
The engine had programmable barrels, animal buddies, enemies, and the HUD system.