The Cellar is the cellar underneath the mansion in Mad Monster Mansion. There is a Tee-hee flying around here. This area is full of barrels marked "1881", 2 of which contain the purple Jinjo for this world and the Cyan Mystery Egg.
Trivia
- The barrels marked "1881" are a reference to the Rare game Atic Atac, where a similar barrel appears.