A Bug's Life Cheats for Nintendo 64
Unlock Full Lives:
On the Training level enter your name as FLIK.
Invincibility (1 Level Only):
During the level description hold Z + R + L.
Unlock Level Select:
At the Main menu, move your cursor to the anthill and hold Up-C, Bottom-C, Left-C, Right-C and Z. Then press R.
Unlock Stage Select:
At the Flik's Journey screen hold Up-C and press the R Button. Then point the analog joystick to the Right.
Go to the ant hill from the main screen. Then, hold C-Up + C-Down + C-Left + C-Right + Z and press R.
If you entered the code correctly, an arrow will appear at the bottom of the screen.
Actually to get all the levels all you have to do is press the r button and while still holding it hit c-up while highlighting the first level.