The app starts with a monster shape rising out of the slime pit at the bottom of the screen. Color dots appear on the bottom that you can use to color your monster however you wish. Once you’re done coloring, tap the check mark at the top of the page and horns, eyes, and a mouth appear on your monster. If you wish, you can pull these things off and new ones will appear to take their place. Now he’s animated and ready to eat!
Food appears in the slime. You lift it out and feed it to him. Your monster will love this! But, as he eats, his teeth become increasingly dirty. Yuck! When he’s done eating, it’s time to brush his teeth. Brush until his teeth are nice and white again.
Once his teeth are clean, accouterments like hats, mustaches, worms and stars appear in the slime. These can be put onto your monster, moved around, and taken off. He happily puts up with this whole procedure, making little noises the entire time. Once you’re done, press the check mark again and a new monster shape appears to play with.
Preschoolers love this app, and the subtle reinforcement of the need for brushing teeth doesn't hurt, either. Even better, while they are playing they are learning the motor skills and control needed to write with their fingers as they have to color and move objects around. The fine motor skills needed for brushing the monster’s teeth are worthwhile in themselves.