Pitfall: The Mayan Adventure (Game Boy Advance)

Pitfall: The Mayan Adventure
Developer: Pipe Dream Interactive Publishers: Majesco (US), Interplay (EU) Platform: Game Boy Advance Released in US: June 10, 2001 Released in EU: September 21, 2001 This game has debugging material. This game has a hidden level select.

Debug Mode

At the titlescreen, (very quickly) enter L, Select, A, Select, R, A, L, Select and "FOREST 1" will appear on the screen. Hold Select and press L / R to select the starting level.

This code also adds a coordinate display, as well as holding Select for a free-movement mode.

(Source: GameFAQs)