Note:  Press A or S to decrease or increase the red time and Z or X to decrease or increase the total time. Default values are 20 ms for the former and 100 ms for the latter, which feel OK on a Sun SPARC station 4, but you may need to tweak and tune them a bit to make the game run optimally smooth on your machine -- especially if it has a slow processor. To start, hold down space bar and click on screen Use keyboard to move up, down, left and right with the L, K, J and I. Shift J and L to pump when critter is near.