Have fun! You can now go to the moon! Go to the launch pad and press 'r' to go to space, then the moon!!! Press 't' to tunnel back down from the moon. Rockets barely work on the moon, because there is no oxygen ;-) You can last about 10 min without replenishing your oxygen.
Press the arrow keys to look around, the a-s-w-d keys to move, the space key to jump, the r key to rocket, the t key to tunnel, and the j key to activate a jetpack. If you end up at the plane of infinity, or mess something up, press 'k' to restart. Go inside the moon base or return to earth to replenish your oxygen. You may see stuff disappear at the edges; this is intentional to prevent a crash. Click the frame to hide it and press 'f' to show it again. The frame also hides the debugging variables.