400 Years is a game on Kongregate where you control a moai heading east in order to prevent a disaster 400 years in the future. Occasionally he must wait for time to pass to create a path forward.
Simply use the left and right arrows keys to move, the up and down arrows to climb, and the E button to pick up/place objects. Along the way, you'll find puzzles requiring you to wait (spacebar). As the title suggests, you have a time limit of 400 years, though this should be much more than you need.