In The First Level, You will Come upon a dresser with an army man basket on top of it. There will also be a bouncy ball on the left of the dresser. If you have 5 lives in the top right corner (Displayed within the cowboy star), jump on to the bottom ledge of the dresser (Bottom shelf), Now duck until the cowboy star begins to spin. You are now invincible.
Passwords can be entered in all versions except the US version. On the main menu, scroll to the fourth option, press start, and enter any of the following: