Here are some cheats and tips for the game Mousetrap Hotel.
043-38F-E62 Start with 4 lives
063-38F-E62 Start with 6 lives
083-38F-E62 Start with 8 lives
FA2-0CD-4C1 Infinite lives
FA6-E9F-4C1 + FA6-DAF-4C1 Collect cookie for invincibility against balls, etc.