Makon Soft's platforming engine was used in nearly every game of theirs (apart from their uncommon fighting games, based off of Street Heroes.
Overview
The engine is poorly made, and is always slightly edited for each franchise. The controls are unresponsive and you sometimes run when you don't want to. Moving platforms (or falling ones) sometimes don't spawn, making it impossible to go further. Sometimes levels aren't unbeatable due to serious glitches. (see Pokémon Jade)