The screen depicts a section of wall with five shelves supporting
various items of crockery. The player guides a mouse around the shelves
pushing each item lower and lower until it smashes on the floor. This is
rewarded by a number of points equal to the mouse's current energy level,
which is shown ebbing away at the top of the screen.
When all the crockery has been broken, a lump of cheese appears somewhere
on the shelves and the mouse must find and eat this to restore his energy
before proceeding to the next wall.
There are four walls at the first level of the game, each with a different
type of animal that the mouse must avoid:
The second level is the same as the first, except that everything is
one and a half times faster, and if this is completed, the game ends with
a reward of 1,000 points for each surviving mouse.
The numbers at the top of the screen are, from left to right, the score,
the energy level of the mouse and the remaining crockery on the current