Full Version:

1.At the Title Screen, type: GUBBLEDCHEAT
2.You  will hear Gubble D. Gleep laugh, verifying that you entered the
code correctly.

Now you can try the following:

From anywhere on a map, you can press:

F3 --> Removes all blocks from the map
F9 --> Advances you to the next city map

From a launch pad on a map, you can press:

PageUp --> Advances to the next level
PageDown --> Goes back to the previous level
Home --> Advances 10 levels
PageDown --> Goes back 10 levels

During play, you can press:

F8 --> Makes you Invincible! (Press F8 again to turn off invincibility)
F9 --> Completes any level
+ --> Speeds you up
- --> Slows you down

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Demo Version:

1.At  the  Title  Screen, type: GUBBLE 2.You will hear Gubble D. Gleep
laugh, verifying that you entered the code correctly.

Now you can try the following:

From the map:

F3 --> Removes all blocks from the maps
F9 --> Switches you between maps

During play:

F8 --> Makes you Invincible! (Demo Version 1.1 only)
F9 --> Completes any level
+ --> Speeds you up (Use this at your own risk)
- --> Slows you down