Hard 'n' Heavy

Development

Hard 'n' Heavy was originally developed as a sequel to The Great Giana Sisters. The game was retooled to become Hard 'n' Heavy when Rainbow Arts faced legal troubles from Nintendo due to Giana's similarity to Super Mario Bros. Early screenshots, like one found in Power Play 6/1988, clearly show a Giana sprite in front of background graphics from Hard 'n' Heavy. A possible working title was Giana in Futureworld, which is mentioned in the manual of Katakis.

Likely to be on the safe side, the final game was published by reLine, not Rainbow Arts, and Rainbow Arts is in fact not mentioned in the game at all.