New update - Version 0.50
Enjoy World 1 in full (Boss included).

  
VERY VERY IMPORTANT NOTE:
This should ONLY be done if you have previously played the game:

• Access the OPTIONS menu and click on the RESET GAME option found in the upper right corner.
  This is due to the new save file format (since version 0.49).
  Sorry for the disturbances.

  
THESE ARE THE MOST OUTSTANDING NEWS:

• Added the last level of World 1.
• Now you can face the first BOSS in the game.
• Added Joystick/Pad support, including DualShock and Xbox Pads.
• Added "Continue Game" option at main menu.
• Improvement of the interaction interface in computer versions: now you hardly need to use the mouse. You can use "Escape / Q", "P", "R", and the "jump button" instead. List of all controls within the "OPTIONS" menu.
• The tutorial instructions points are again indicated (as in the first versions) with question marks.
• New logo (slightly modified). Click on it to see the old logo.
• Options to turn on/off music and sound effects in the PAUSE MENU.
• 2 new languages: Japanese and Simplified Chinese.
• Lots of optimizations and bug fixes.

Thanks for playing!!