30 continues Granted by Matrix
Hold Select, press Run at the title screen, and wait until the phrase "Area 1" appears.

Area 0, 30 continues Granted by Matrix
Enable the "Sound test" code. Press I, II, Select twenty two times. Then, hold Select + Run until gameplay begins.

Debug mode Granted by Matrix
Enable the "Sound test" code. Press I, II then tap Select repeatedly until the debug screen appears. The following debug functions may now be enabled.

Extra lives, bombs, and power Granted by Matrix
Enter the debug number for the desired level. Hold I + II and press Start to begin game play with 10 lives and 10 bombs. Additionally, you will continue from the previous location instead of the previous checkpoint after losing a life.

Half game with many satellites Granted by Matrix
Enter 83 as a debug number.

Invincibility Granted by Matrix
Enter 77 as a debug number, then press Up, Down before exiting the debug screen.

Level select Granted by Matrix
Enter 00 - 09 as a debug number.

Mode select Granted by Matrix
Hold Select while tapping I, II repeatedly at the title screen. Press Select to choose between four difficulty levels. Begin game play by holding Run and press Select. Alternatively, enable the Turbo switches and press I + II to start the first part of the code.

Sound test Granted by Matrix
Hold Select and alternately tap Left, Right repeatedly until "Sound 01" appears.

Unlimited continues Granted by Matrix
Enable the "30 continues" code. When the current game ends with 30 continues remaining, press Select, Select, then hold Select + Run until the game restarts.

View ending sequence Granted by Matrix
Hold Right and quickly tap Run at the title screen.

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