Prince always had superpowers. You only had to witness him picking up a guitar or sitting down at a keyboard to know it. His voice could encompass Curtis Mayfield, Stevie Wonder and Mick Jagger, while remaining recognisable as its own thing. But around the time he created his own musical fantasia out of Tim Burton's Batman, Prince actually got to become a comic book superhero.

Mortal Kombat has ninjas of all different colours. Yellow-clad Scorpion is hot like fire and green-skinned Reptile spits acid at fools. Sub-Zero may wield cryokinetic power but he isn't the coolest martial artist in the fighting game series. That title goes to Rain, because he was created as an homage to Prince.