Here are some cheats and tips for the game Jetsons.
04F-16C-E66 Start with 4 lives
07F-16C-E66 Start with 7 lives
09F-16C-E66 Start with 9 lives
00F-C7F-E6E Infinite lives
009-088-3B7 Infinite energy–some robots can’t be killed (switch off to fight them)
09F-1EC-F7E Max collectible energy
012-A7B-E62 Capped robots on first Elroy stage take 1 hit to kill
082-A7B-E62 Capped robots on first Elroy stage take 8 hits to kill