Bubble Bobble
Cheat Codes, Hints, Passwords, and Tips

 

Unlock Harder Difficulty Level

While you are at the Title Screen, press Shoot, Jump, Shoot, Jump, Shoot, Jump, Right, and 2nd Player Start Button.

Unlock Unlimited Run and Rapid Fire

While you are at the Title Screen, press Left, Jump, Left, Start, Left, Fire, Left, Up, Start.