From the feedback, added a bunch of requested features!

• Fixed a bug which caused the player to lag a
  little bit when his head touched a block while falling.

• Added update button in main menu which brings you to the
  download website to download newer version.

• Added a background image in the main menu.

• Added the level number in the HUD while playing(so you know
  which level you’re on)

• Added a new screen after highscores that asks you if you want
  to load from a previous save instead of starting over.

• Made the sound of level complete (when player goes through
  the door) smoother and less loud than before