A major theme of the game is Laika's different personalities, embodied by three different characters, Ernest, Yolanda, and Spacer.

[1] Unlike most RPGs, which feature turn-based battles, Planet Laika's are played out almost like Space Invaders and Pong.

Planet Laika was co-developed by Japanese software developers Quintet (famous for ActRaiser, Illusion of Gaia, and Terranigma) and Zeque, known in Japan for the PlayStation cult hit Kowloon's Gate.

[1] Zeque was responsible for the concept, design, scenario, and graphics, whereas Quintet handled the programming and sound.

Like Kowloon's Gate, Zeque's themes for Planet Laika were good and evil and light and darkness.