The control panel elevator button or the keyboard space bar move you to
the next level when all robots are dead at the current level. When you
move to the next level all of the scrap heaps disappear and new robots
appear. The number of robots and the value of each robot increase as
the level increases. You also receive more safe teleports when you
reach a new level.
If any robots are still alive, the program opens a dialog box and asks
if you want to start a new game. Click Cancel to return to the game or
click OK to start a new game. This is equivalent to the 'next level'
command in the original Robots game. The space bar only works this way
when the elevator button has the focus.