I started this just before my PS4 arrived, but went back to it today to finish it off. It’s reasonably short, and plays a lot like Ico or Papo & Yo, with some puzzles and a bit of platforming.
The “thing” is that the boy you control is invisible, and can only be seen when the never ending rain is landing on him. Under shelter, he’s hidden from both baddies and you (as in the player) – step out into the rain and his water soaked outline appears. The same is true of most of the baddies as well, and splashing through muddy puddles can reveal you even when hidden – until you take a bath or a swim to wash the mud off.
It’s quite a clever idea, modifying a standard hide-and-seek mechanic seen so many times before, but making the character you’re controlling so difficult to see (even when technically visible) can make things frustrating. Even more so when you’re finally joined by an equally invisible girl – frequently I forgot which one I was controlling and ran the wrong way. Not great when you’re being pursued by The Unknown, a bizarre giant creature who seems intent on killing both of your for reasons, well, unknown.
I sort of enjoyed Rain, but I was glad it came to an end when it did. It looks great, with all the apparently 1950s French streets you roam, and the classical music soundtrack is fantastically haunting, but I think it exhausted its ideas just before the game finished. Well worth the free rental, though!