Astérix

Cheat Menu

While playing, press Start to pause the game. Then press Up 8 times, Down 4 times, Left 2 times, A, B, Right 8 times, Left 4 times, Up 2 times, B and A. If done right, a sound should be heard. Now press Start and you'll be taken back to the title screen with the cheat menu available.

Invincible

While playing, press Start to pause the game. Then press Up 8 times, Down 4 times, Left 2 times, A, B, Right 8 times, Left 4 times, Up 2 times, B and A. If done right, a sound should be heard. Now press and hold Up, Right, A & B and press Start. You'll be taken back to the title screen (with the cheat menu available too). Start a new game yet again (you can enable some cheats if you wish), pause the game and again press Up 8 times, Down 4 times, Left 2 times, A, B, Right 8 times, Left 4 times, Up 2 times, B and A. If done right, a sound should be heard. Unpause the game and you should be invincible.