I worked on this game for quite some time. Probably a good 20-30 days of work on it. This is my first ever large scale game and has a functioning high score system by rankz.armorbot.
I didn't perfect everything yet but I am working on it so criticism is welcome. I am more worried right now about coding problems and glitches than making the jumping and collision detection perfect.
The game can be found here:
[url=http://3dmitchell.com/super/]
Please try and go for the high score, the third level is not completed yet so if you make it that far you did an amazing job and you get a nice level preview.
I also used a template from flashvillage.com to create a little movie about the making of the flash game and what goes into creating something like this.
The movie explaining the making of the game can be found here:
[url=http://3dmitchell.com/makingsupermitch.php]
The updated high scores can be found here:
[url=http://rankz.armorbot.com/supermitchio/]
If you get to check it out, let me know what you think.