Plot: GB Genjin Land: Viva! Chikkun Kingdom, known in China as Bonk's Adventure Land Kingdom, is an action video game that was released by Hudson Soft for Game Boy on April 22, 1994 in Japan and China. Wikipedia
Plot: Super Genjin 2 is a 1995 2D platform video game by Hudson Soft for Super Famicom. It is the sequel to Super Bonk and the fifth game in the Bonk series, and the second platform game in the series never to be released outside Japan. Wikipedia
Plot: Super Air Zonk: Rockabilly-Paradise, released in Japan as PC Genjin Series: CD Denjin: Rockabilly Tengoku, is a horizontal scrolling shooter developed by Dual and published by Hudson Soft. Wikipedia