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What are you waiting for? GO!
|“||Eh ha ha ha!||„|
|~ Jack-Jack (after using his monster form to annoy his dad)|
Monster Jack-Jack is a supporting protagonist in The Incredibles and Incredibles 2. He is an alternate form of Jack-Jack Parr.
Monster Jack-Jack only appears when Jack-Jack gets angry. When he turns into a monster, he uses the form to attack the person who made him turn into a monster. He's dark purple with orangeish brown hair and bushy eyebrows. He can be seen wearing a diaper or the red blanket sleeper.
Monster Jack-Jack returns in the sequel only to annoy his dad. He serves as the arch nemesis to Mr. Incredible.