The ultimate goal is to destroy the evil wizard who cast a spell on the title protagonist; thereby transforming him from an ape back into a human, and rescuing the kidnapped princess.

The protagonist of the game is a muscular, loincloth-wearing, Tarzanesque tribesman named Toki (known in Japan and in some ports as JuJu), who up until recently lived a primitive yet contented life in the jungles of a vast and wild island in the South Seas.

The wicked shaman then casts a spell to transform all the human inhabitants of the island into various animals and beasts, before they can defend themselves against the evil magic.

Fortunately, the great warrior discovers that he is still in control of his own faculties and as an unexpected side effect of the spell cast on him, he can breathe fire and shoot forth various projectiles from his mouth.

Toki then sets off on a quest to pursue and defeat Vookimedlo, rescue princess Miho, and undo the curse which has befallen the island.

However, to reach Vookimedlo's golden palace, Toki will have to travel through murky lakes, steep canyons, over frozen ice-capped mountain ranges and lava-spewing volcanoes alike.

In Japan, Game Machine listed Toki on their March 15, 1990 issue as being the sixteenth most-successful table arcade unit of the month.

It was being developed by Golgoth Studio and was originally targeted for release on PC via Steam, and on home consoles through XBLA, PlayStation Network, and WiiWare.

It missed its original 2011 release, and while it wasn't officially cancelled, it was considered vaporware for years, even after being approved on the (now-retired) Steam Greenlight service at the end of 2013.