A baby-sitting job turns difficult for Stanley when the infant finds the Mask and joins a biker gang with their chief Lonnie The Shark (who is posing as children's show host Barnaby the Dinosaur).
Tropes:
- Arson, Murder, and Jaywalking: After Lonnie the Shark kidnaps Baby Forthwright for "insurance" as the Mask fights his goons, the Mask calls him out on that… along with his cover as Barnaby the Dinosaur.The Mask: Kidnapping and extortion are bad enough, but for the crime of bringing Barnaby upon the children of this great land... YOU. MUST. PAY!
- Badly Battered Babysitter: Stanley has to take care of Baby Forthwright when the baby finds the mask and puts it on which gets Stanley having to deal with a green headed baby even at one point has his trousers replaced by diapers.
- BFG: The Mask puts these out to get Lonnie and his gang to stand down though it’s most likely to be filled with Bang Flags like before as The Mask probably only did it as a bluff.
- Cloudcuckoolander: The Mask as usual decided to buy a huge TV set just so he can watch a sports game on it even using Stanley's credit card maxing it out even though they still got 17 payments to pay which he decide to let Stanley worry about that instead while he watches his sports game.Mask: Hang onto your eyeballs (which he takes his eyes out literally) 'cause we're watching the big game on our brand-new wide-screen TV. I was right there. Just had to buy it. Well, maxed out the credit card. Still got 17 payments to make. But, i'll let Stanley worry about that later. It's going to be a perfect day, bow-wow. Just me, you (referring to his dog Milo) a hoagie and some gut-busting gridiron action. (He then changes his appearance into that of a fan with all the junk food surrounding him with drink cups on each side of his head, a hat and belly that goes with it.)
- Depraved Kids' Show Host: The kids tv show host Barnaby turns out to be the leader of the biker gang Lonnie The Shark and is willing to hurt children as he drops Baby Forthwright from the rooftop to slow The Mask down.
- Friend to All Children: The Mask once again shows he cares about children very much as he tells Lonnie and his gang they do not want to mess around with him as he is the babysitter and when Lonnie drops Baby Forthwright from the rooftop when The Mask was chasing him on the wall with his bike, The Mask saw what happened and, turns around then saves the baby just in time.
- Goo-Goo-Godlike: Masked Baby Forthwright is like The Mask only he has no sense of right or wrong unlike him so he joins the biker gang because he wanted to join in and is even more chaotic than The Mask can be at times.
- Heel–Face Turn: Masked Baby Forthwright joins Lonnie’s gang which he wanted to do because of the fact that as a baby he has no sense of right or wrong but however after he finds out that Barnaby is Lonnie The Shark and, the fact that he tried to kill his unmasked self to try give himself enough time away from The Mask he turns against him and stops him becoming just like The Mask chaotic but a heroic person with some sense of right or wrong in the end.
- Jerk with a Heart of Gold: The Mask buys a huge TV set using Stanley’s accounts to watch a football match then gets interrupted by knocking on the door which he wants them to go away but they don’t so knowing that no one can know about him and Stanley are the one and same person takes his face off so that Stanley can deal with whoever’s at the door. The Mask unlike before stays on track because of the fact that Baby Forthwright is in danger showing as always that The Mask is a heroic, kind and good hearted man despite his quirks.
- Normal Fish in a Tiny Pond: Lonnie The Shark and his gang don’t have any powers or abilities which makes it easy for The Mask to take them down but however they are still dangerous despite having no powers or abilities and the advantage they have is using Baby Forthwright as a hostage with The Mask’s good hearted nature being the only thing holding him back from finishing them quickly as he usually do even having to turn around to save the baby because Lonnie dropped him to give himself enough time to escape which The Mask has to temporarily stop chasing him to save the baby from falling to his death.
- Papa Wolf: The Mask is very protective of any children he has with him therefore after Lonnie tries to kill Baby Forthwright, The Mask becomes more determined to take him down.
- The Team Normal: Lonnie The Shark and his gang despite their quirks are pretty much the most normal and down to earth villains ever seen which though The Mask has a easy time dealing with them he has to make sure that the baby is safe from them so that he does not get hurt or killed while he’s fighting them, even having to turn around to save the baby from falling to his death.
- Trademark Favourite Food: Baby Forthwright loves Ice Cream which he then starts crying because Stanley can't give him one because his mom told him not to. Masked Baby Forthwright while going all chaotic eats amounts of ice cream and even puts piles of different flavours of ice cream on one cone which he eats while in his motorcycle trolley.
- Voluntary Shapeshifting: The Mask as usual changes into a sports fan when he watches a sports game, a biker with a helmet, a little girl with his voice unchanged, a cowboy with poncho, Centurion, another cowboy with ten gallon and a baseball referee.
