Kindom hearts world of nightmares

Kingdom Hearts: World of Nightmares is supposedly Kingdom hearts 4:Abyss of thought. But there are in game differences. Kingdom hearts World of nightmares(Won) icludes playing as other known characters such as axle, sora, roxas, riku, the king, and as a new enemy called a souless, it is a virus that has taken over the heartless and nobodies. There are also lots of new worlds all the worlds in order are:

Destiny Islandshollow bastionpridelandskauaii(lilo and stitch)deepspace(part of kauaii)port royaltwilight townNotre dame(hunchback of Notre dame)Gadget`s lab(inspector gadget)End of The worldThe world of nightmares