Glitch Runner (Dr. Briznar)

This is a game idea that I've had for a while. I recently learned python, so I figured I'd try my skills with this little creation of mine.

Try your hand at a platformer that slowly corrupts to become unplayable over time, embedded in a simulated Macintosh along with an email system, a text editor, a trashcan, and possibly more...

Please give me feedback on this, I'm looking to improve in any way possible.