Snakebird snakebird snakebird! http://store.steampowered.com/app/357300/
An ingeniously designed puzzle game. Looks cute and simple but, as everyone will tell you, it's immmensely challenging. Super satisfying solutions though. Highly recommended!
I went ahead and wrote hints for every level. http://steamcommunity.com/sharedfiles/filedetails/?id=571770264
And then I drew this because SNAKEBIRDS, man.