Select Single Player mode, go to the level selection screen, and choose the Contra level. Then, press Up(2), Down(2), Left, Right, Left, Right, B, A at the "Enter Secret Password" prompt.Achievements
Accomplish the indicated achievement to get the corresponding number of Gamerscore points:
- Rumble in the Pond! (10 points): Won a single player Battle Royale!
- Twin Frogs (10 points): Got a Twin Frog pair Home!
- Challenged (50 points): Completed every challenge!
- Frogger in Love (10 points): Rescued a Lady Frog in Classic!
- Highway Crossing Frog (20 points): Completed the fifth difficulty level in Classic Frogger!
- Nostalgia (10 points): Got a Frog Home in Classic Frogger!
- The Devoted Artist! (20 points): Cleared all the Paint Patterns!
- Go! Frog! Go! (10 points): Used a Fly power up against only CPU!
- Twin Stick (10 points): Tried both Hyper and Retro controls for Classic!
- Tongue Tiled! (10 points): Won a single player match in Tile Capture!
- Around the World (20 points): Played every game mode!
- Greasy Joystick (20 points): Obtained a score of over 100,000 in Classic Frogger!