Tricky is a bat who invaded the family's house when Hal had brought an old wardrobe home from the junkyard in the episode Robbery.


Malcolm, Reese, Dewey and Hal managed to get rid of all of the bats except for one, that was Tricky. Tricky was hiding in Lois and Hals bed room until Dewey came in and poked him with a long stick, this caused Dewey to scream and run away, Tricky chased Dewey until he was caught in a silly string web what Reese, Dewey, Hal and Malcolm had made, then Reese, Hal and Malcolm squirted Tricky with more silly string until Tricky couldn't fly any more.


  • It is revealed that Dewey was the one who named this bat Tricky.