Circuit Spark - A Shocking Platformer

Info/Link:
Play online here!
Engine: HTML5 (Construct 2)
*Works best in Chrome Browser, but should work in any HTML5 supporting browser
Genre: Puzzle/Platformer

Description:
A platformer all about dynamic speed, mastering the mechanics, and developing your own skills to beat the challenge.

Screenshots:

Anyone having trouble with the stage 12 can view how to finish it here:

Areas for Feedback:
Does the game do enough to let you know how to play? Do you feel like it should've done more, or less? The first several levels try to "teach" the player how to play. Did that work for you?

I feel like the mechanics are pretty straightforward, but the way you complete most stages is by dying and retrying, and not so much having good reactions like most platformers.