Claustrophilia is a game about surviving in a room determined on squashing you to death. Use your running, jumping and rolling skills to dodge the never-ending effort of the blocks to hug you. Use your slowmotion powers to increase your accuracy and postpone your imminent death. You will die a lot but don't worry, revival is instant. The only punishment is that you've again failed to increase your highscore.
Arrow Keys to move character and select stuff in the menu.
Space / Enter to select menu options.
Esc / Q to go back through the menu.
P to pause the game.
In game tutorial explains more and better.