The main series titles in the Pokémon Mystery Dungeon franchise are:
* Red Rescue Team (and Blue Rescue Team)
* Explorers of Time, Explorers of Darkness, and Explorers of Sky
* Gates to Infinity
* Super Mystery Dungeon
* Rescue Team DX
It's possible you might be thinking of a fan-made game or a custom ROM hack based on the Pokémon Mystery Dungeon series, as those do exist. However, there is no official game by that name.