Is there a dungeon with 100 Floors on pokemon mystery blue rescue team?

There is no dungeon with 100 floors in Pokemon Mystery Dungeon: Blue Rescue Team.

The deepest dungeon in the game is "The Sky Tower", which has 50 floors.

While the concept of a 100-floor dungeon is intriguing, it doesn't exist in Blue Rescue Team. It's possible you're thinking of a different Pokemon Mystery Dungeon game or a fan-made creation.