Disgaea 3: Absence of Detention
54 Achievements
138-168h
Item Spelunker
Congratulations on reaching the 100th floor! You're on the right track to become a hardcore player! Details for this achievement will be revealed once unlocked
10.7%
How to unlock the Item Spelunker achievement in Disgaea 3: Absence of Detention - Definitive Guide
professorstotch, and, unnxandros
Complete floors 1-100 in Item World without exiting. You can access IW pretty early in the game, starting around Chapter 3. You’ll need to find a Legendary item to be able to go for 100 floors. While on the screen to enter the Item World, it’ll show you at the bottom the levels you can expect enemies to start at. They will increase steadily with each floor, and if you’re not careful you run the risk of being out-levelled.
One good strategy is to create a "runner". A good option is a Masked Hero, as he has a high move count to start and his flying movement type allows him to go through enemies. Throw three pairs of shoes on him, and he can go pretty much anywhere. Any level that doesn’t have a gatekeeper, just send him right for the exit.