Klonoa: Door to Phantomile is a platform game developed and published by Namco for the PlayStation in 1997 and the first game in the Klonoa series. The story follows Klonoa and his friend Huepow in their efforts to save the dream world of Phantomile from an evil spirit intent on turning it into a world of nightmares. The player controls Klonoa through a 2.5D perspective; the stages are rendered in three dimensions but the player moves along a 2D path. Klonoa can grab enemies and throw them as projectiles, or use them as a jump boost to navigate through the stages.

Klonoa 2: Lunatea's Veil is a platform game developed and published by Namco for the PlayStation 2 in 2001. It is the direct sequel to Klonoa: Door to Phantomile (1997) for the PlayStation.