Pokémon Mystery Dungeon: Explorers of Time Glitches

Kecleon Joins You For One Floor
You can make a kecleon be on ur team for 1 floor without properly recruiting one. Here's how:

Go to a dungeon that has exploding pokemon (the cave after agis cave is good) and get to the floor with the kecleons. Buy all the items there, then get you and your team right next to kecleon. Hold a and b until you lure pokemon that self destruct.

If the pokemon dont explode do step 4 again. If they do then make sure the explosion hit kecleon. It does like 80 damage. When the kecleon get hit with the explosion, he will become afraid and follow your team for 1 floor (his pokemon name wont show on your team list and he wont talk to anyone).