OK, there are some other simple cheats, but the "Big one" is this:
Go to the Options screen (with "Option" :-), and using your joystick,
set "special code" to 61800 (This takes a while, but it's worth it).
This only works immediately after starting the game!

Now hold down the letter "f" key and press OPTION again. So that's
F and OPTION together. It seems as if nothing has happened, but in
the game, you can use the following keys:

- Q : Advance one level
- A : Decrease one level
- B : original position
- Z : Same level again
- F : Float mode on: This one's great: If things get too hard or
impossible to play, just press F and float your way around the
screen.


How to jump to higher levels:
From 1 (Bob's morning calisthenics) to 4: get the flower pot,
then press "1" and "START".

From 2 (utility hoist) to 22: kill the mutants, get the paint roller
and then press "3" and "START".

From 3 (suction tubes) to 15: get the goblet then press "4" and "START".

From 5 (jumping 101) to 8: get the coffee pot, then press "8" and "START".

From 10 (gravity lift) to 14, get the pitchfork and then press "5"
and "START".

From 16 (Advanced Suction Tubes) to 19: turn arrow in suction tube #1
to the left, get the pie and then press "9" and "START".