Learning Unity - 2D Platformer

I'm a total noob learning Unity. I basically took their 2D platformer tutorial and messed around with the backgrounds, so I didn't get to play with any scripts yet... This is a useful exercise because all the things are wrong teach you how to do it right next time ;)

- Here is the web version

i am a beginner so: The graphics are inefficiently processed--i think they are ridiculously large, so it wouldn't run that well on a mobile phone, and ther eare at least 64 draw calls.

It is taken from the unity 2D tutorial

Thanks to Kelsey for being such a sweetheart and helping me out! And this is basically a Unity tutorial, so they rule too!