Maimaimai Goen

Yu Okada, a new nursery school teacher, is on a field trip to Sanrio Puroland with the kids. As they're about to head home after a fun day, his vision suddenly gets distorted... They wander into the deserted amusement park "Yuropia" where they're confronted by a cute but creepy creature called "Froggy Egg." In order to return to their own world, they must challenge the park's attractions and collect 10 "medals"...