Ruben is Sleepy has something in common with bullet-hell shmup Ikaruga: it has a polarity shifting mechanic which forces you to switch the coloured charge of the hero to stay alive.

However, as Ikaruga doesn't have you tumbling ever downwards through a nightmarish world of TV sets sporting pictures of cats, or sunsets, or whatever else you fevered brain cooks up, that's where the similarities end.

What the hell am I talking about? Check out the video above to find out.