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, CIRCLE, X at the "Enter Secret Password" prompt.
Frogger In Love - Rescued a Lady Frog in Classic!
Go! Frog! Go! - Fly power up used only against CPU!
Nostalgia - Got a Frog Home in Classic Frogger!
Rumble in the Pond! - Won a single player Battle Royale!
Tongue Tiled! - Won a single player Tile Capture match!
Twin Frogs - Got a Twin Frog pair Home!
Twin Stick - Used both Hyper and Retro controls for Classic!
Around The World - Every game mode played!
Greasy Joystick - Obtained a Classic Frogger score of over 100,000!
Highway Crossing Frog - Completed all 5 difficulty levels of Classic Frogger!
The Devoted Artist! - All the Paint patterns completed!
Challenged - Every Challenge completed!