In the Japanese Famicom game "Doki! Doki! Yuuenchi," you play as a blue helmeted boy who tries to rescue his girlfriend from an amusement park by kicking balls at the monsters who have taken it over. An interesting gameplay mechanic is that the more damage the boy takes, the more damage he's able to inflict on enemies. The game was released in the Europe as "The Trolls in Crazyland," with the original characters replaced with ones from the popular Trolls line of toys.