Konami GB Collection Volume 2 - Gameboy Color
Parodius: Power-up ship
-----------------------
Pause game play, then press Up(2), Down(2), Left,
Right, Left, Right, B, A.
Parodius: Music test
--------------------
Press Up(2), Down(2), Left, Right, Left, Right, B,
A at loading screen
Parodius: Bonus level
---------------------
Locate the gap at the bottom of the screen on
level 3 soon after entering the cave. Enter it to
advance to a secret bonus level.
Track And Field: Bonus effects
------------------------------
Hammer toss
Throw the hammer at maximum power at 80 degrees to hit a UFO.
Triple jump
Land just short of the pit and a frog will appear on the screen.
Archery
Hit the ground between the 40 and 50 yard marks in the 70 yard
shot to see a groundhog.