Found by wersterlobe, I think it can be classed as a speed run, and the game goes onto the next level. In werster's video he explains why the glitch happens: <a href ...
It's main goal is to mimic the Emerald Hunting Gameplay from Sonic Adventure 2/Battle. Playable characters being Knuckles and Tikal, through each stage you must find and collect 3 Emeralds or ...