Level select:
Go to the ant hill from the main screen. Then, hold C-Up + C-Down
+ C-Left + C-Right + Z and press R. An arrow
pointing to the right will appear at the bottom of the screen to confirm correct
code entry. Scroll the screen in that direction to access any level.
Invincibility:
Hold Z + R + L when the level description appears at
the start of a level. Note: The invincibility only lasts for the current level.
Unlimited lives:
Return to training level and find the letters to spell "FLIK" to
gain a bonus life. Repeat this to obtain as many lives as needed before resuming
the regular game.