Wikipedia
Eggerland
The series consists of several puzzle games developed by HAL Laboratory. Its first release was in 1985 for MSX computer systems. Many titles were made in the series and the gameplay is almost exactly the same in every game as well. Only a few changes were made over the years (mainly graphical).
The hero of most games is Lolo, a blue, spherical character with eyes, arms, and legs. The story mainly deals with King Egger, the villain, capturing princess Lala, who is similar to Lolo, only colored pink or red, and wearing a bow. Lolo must rescue Lala by travelling through Egger's domain and solving the puzzle rooms laid out before him.