Start a game from the title screen. Press Select to return to the title screen. Go to the options menu. Hold Down + A + X + L in order. The clouds will speed up to confirm this portion of the code. Choose to start a game. Press X during game play to automatically kill the enemy. Although the game displays the health bottles for the enemy, but they will not be there. For invincibility. draw your sword then press Up and press X. Note: This has no effect for long falls, spikes, and the people that hide behind the walls with swords from level 6. Also, you will no longer be invincible when you drink a potion or die. Re-activate the code to become invincible again.
Hold Down + A + X + L in that order at the options menu. The clouds will scroll faster to confirm correct code entry. Press Select during game play to jump to the next level.