Marble Blast Gold

Marble Blast Gold cheat codes: 
Press [F10] during game play, then enter one of the following codes:
Set gravity; "2" is low gravity  - default.marble.gravity=[number];
Set speed                        - default.marble.speed=[number];
Level select and editor(*)       - $testcheats=1

(*) After selecting a level, press [F11] to start the level editor.
Press [F12] to add power-ups and pads to the level.
efaultmarble.gravity=2; and you have a low gravity.