Do I really have to say... All the Amnesia characters..... The Barrels being one of the main enemies. Then Mr. Chair, Piggy, Jennifer, Stephano and the gang all being random little characters that you need to rescue on the way to finding the end. Of course I don't think it should be just Amnesia characters, I think it should be like stages with different game characters that you need to save! So on and so forth!