The Sun And The Moon is an interesting platforming game that relies on the uses of momentum and platforming agility to get to where you need to be.
Each level is different, and each set of them introduces a great new mechanic to worry about. Respawn times are quick, and when you die (which you will a lot), you get back into the action almost immediately.
The game controls incredibly solidly, and every mistake you feel is one that you can correct on your next attempt. With that said, it does get difficult, quick. And you will get frustrated. However, I believe that this is a game that fans of the platformer genre should definitely take a look at.
The Sun And Moon can be found on Steam: http://store.steampowered.com/app/321560/
And on Itch.io: http://managore.itch.io/sunandmoon