The game was published in 1987 by Elite Systems Ltd for home computers including the Amstrad CPC, Amiga, Atari ST, Commodore 64 and ZX Spectrum.

[1] The player takes control of the character Lion-O and maneuvers him through 14 side-scrolling levels to search for the missing Eye of Thundera.

In several levels, Lion-O would jump into a flying vehicle that can fire in a similar manner as the short range energy gun.

Upon obtaining the ThunderCats license, Elite Systems contracted Paradise Software to develop a game based on it; they also started to develop one internally, in case Paradise could not deliver in time for the announced Christmas release date.

Paradise's game had the protagonist changed into Sir Arthur and pitched to Capcom as a sequel to Ghosts 'n Goblins.