If you type in the following cheats on the title screen, life will
 be much easier for you:

 TOUGHGUY      -       Invincibility
 KICKASS       -       Unlimited bombs
 BUMBLEBEE     -       Use the [Enter] key to jump to the next level
 VISION        -       20 new lifes
 CREMOLA       -       10 new lifes
 OLDENEMY      -       No time limit
 ALCENTO       -       99 bonus items

 There is also a way to cheat with the config menu: Type PHONEBOOK
 dure the options screen and now you have:

 [0]    - Jump to the next level
 [3]    - Jump to the bonus level
 [Ctrl] - Makes the Ninja jump higher