The Keys:
Use the cursor keys to control the diver, and the +/- keys to inflate and deflate the STAB jacket.
Speeding up the simulation on slower machines
| c key | toggles the console on/off |
| f key | toggles the fish on/off |
| b key | toggles the bubbles on/off |
| v key | toggles variable display on/off |
...and of course, the obligatory cheat key...
r key refills the cylinder