Forty-seven Kremkoins:
Highlight any saved game at the file selection screen. Hold Left or Right and quickly press A, B, A, B. A sound will confirm correct code entry.

Forty Banana coins:
Highlight any saved game at the file selection screen. Hold Left or Right and quickly press B(2), A(2). A sound will confirm correct code entry.

Forty-seven lives:
Highlight any saved game at the file selection screen. Hold Left or Right and quickly press A(2), B(2). A sound will confirm correct code entry.

Leave previously completed levels:
Pause game play, then press Start + Select.

Delete saved game:
Press Start + Select at the load game screen.