Sonic The Hedgehog 2: Return of Shadow

Sonic 2: Return of Shadow is a ROM hack based off of the original Mega Drive version of Sonic the Hedgehog 2 that has been in the works since 2013. It includes 4 characters to choose from all with different move sets that fit them. Every level in the SHC '15 demo has art changes, along with new music in each act. Layout changes (Knuckles has some of his own) and much more.