First off, let me start by saying this is a pretty great demo! It is basically what one would expect from Sonic in Super Mario 64. The physics codes and message codes overall to the game, giving it more of a Sonic-like feel. The model looks great, and was implemented well with what Mario 64 is offering, in terms of it's engine. The sound effects are very clear, and remind one of Sonic adventure, which is a huge plus. When finished, this will be a great hack! Good job, Megaman511again!