Boxin'

Welcome to the World of Boxin’. I should add that now that you’re here you can’t leave. Because in order to leave, you need to break out of a cardboard box inside another cardboard box inside another cardboard box. Within this prison of infinite cardboard, there are guards to stop you from entering the next level. They use spikes to return to an upper level, but luckily so can you. Use the mouse to slingshot the box into the spike. You can break free after hitting the spike three times.