Game was made by InfinityDash. It can be found here:

http://infinitydash.deviantart.com/art/MLP-FiM-Platforming-Game-Test-204724303

Further proof that I suck at this. Took me way too long to find a single chaos emerald. Oh well, you get to watch me suffer. xD
This is only an early version, when it's updated to a point where it's totally different, I'll give it another play through. But that's a failure for me to platform for another day.