Lesson 1: https://paper.dropbox.com/doc/Lesson-1-O5CvmsAoo1XQkHfdciGpW
Lesson 2: https://paper.dropbox.com/doc/Lesson-2-3DO8Sd760ojq0O3azCUXR
Lesson 3: https://paper.dropbox.com/doc/Lesson-3-kOc6QqwLxq3KA7Y4XlDPn
Lesson 4: https://paper.dropbox.com/doc/Lesson-4-sgtFrGTbzaF2ETK9cPDBw
Sprites: http://www.mariouniverse.com/sprites/nes/smb
Font: http://www.fontspace.com/freaky-fonts/emulogic
Sounds: http://themushroomkingdom.net/media/smb/wav
Music: http://downloads.khinsider.com/game-soundtracks/album/super-mario-bros/