Here are some cheats and tips for the game Q*Bert.
SXSZGPVG Infinite lives
AESPVGAE Start on level 3
GOSPVGAA Start on level 6
AXSPVGAA Start on level 9
PEUOOGIA + PAXZLLIA Start with 1 life
ZAXZLLIE + ZEUOOGIE Start with 10 lives