Marble Madness – Game Genie Codes
The following are known Game Genie Codes for Marble Madness on Nintendo Entertainment System (NES).
Extra 20 seconds to complete the Beginner Race
Extra 40 seconds to complete Beginner Race
Bonus time is not added
Do you know any additional codes for this game? Is there an error listed above? Let us know about it and we’ll update the list.