The Eggerland series stars Lolo, a round blue creature with large eyes, who must save the land from evil King Egger. He is often also tasked with saving Lala, a round pink creature similar to him who is also his love interest; as the series goes on they eventually get married and become King and Queen.
The gameplay has remained consistent throughout the series. Each level in the games is a static room filled with enemies and obstacles, with the player being tasked with collecting all Heart Framers in order to clear the room. Enemies all have unique patterns, with the player being able to ignore them or dealing with them with Magic Shots, Lolo's only form of offense, which temporarily turns enemies into Eggers. The player must also deal with objects strewn around the levels such as the Emerald Framers, which Lolo can push around to move them out of the way or position them in a way to block enemies and their attacks.