Nudo is a slick puzzle platformer set around the concept of shifting the level to allow our naked hero to press the buttons and exit through the door.

The WASD keys control his movement, while the arrows keys shift the blocks depending on his position in relation to them. Later levels introduce obstacles that add an extra depth, including areas in which blocks cannot be shifted, and levels where sliding all the blocks into their holes reveals the exit. The levels I liked best were the incredibly simple ones - there is a level which is made up of just two blocks and the exit.

There's also a challenge mode, which asks you to play through each of the main campaign's levels but only do a set number of shifts. Give this a download, it's lovely stuff.