 It was once intended to be a dinosaur game, in which players can issue commands to other dinosaurs, for the Wii console.Kamiya cited the 1987 "Dragon Slayer" action role-playing game "Sorcerian" as inspiration, including its fantasy theme, "gigantic monsters," different scenarios, "expansive possibilities", "tons of adventures" and enemies such as a hydra boss and "lots of amazing dragons".He also cited the 1987 PC-8801 MA release of the action role-playing game "Hydlide 3", noting the influence of its "hardcore game design", as well as the dragons of the role-playing video game "Dragon Quest".