Best unused graphics and features of games.

[Gaia]

And in Sonic 2, there were some zones that were being developed but then weren't put into the final game. Hidden Palace was one, but there was another one set in the woods ands another Snow zone that I can't quite remember the names of.

The zone set in the woods is actually titled "Wood Zone." The more you know~

There's also the Sand Zone in an old vg article, but I like to belive it was recycled into SandOPOLIS Zone in S3K.