Made with help of "Perfect Sidescrolling Engine v2.1" the features that this engine has are: V1.0 *Sonic (running, jumping, jumping noises) *Rings (collectable, ring noise when collected) * Counters (working time, score, and ring counters) * Authentic Music (Green Hill, Unused 3D Blast Boss Music) * Robotnik Boss Fight (get the right sprites, customize your own boss battle)