It's a cool concept.
Kind of a bland platformer though. I love the constantly leveling up portion of this game, that requires some experimentation.
The music is forgettable, however, but not bad.
That graphics and animations are smooth, and no one can fault you for that.
It seems play-tested and quality controlled, which I (the viewer) appreciate very much.
The execution is good, but again, the game as is is average. Nothing to detract from what you did well, but jem collecting gets old after 10 minutes. If it was converted to a more metroid style of gameplay, I think the concept would have flourished better. This meaning: some action, so platforming that needs certain items (or ingenuity), and at least some story worth caring about.
I don't need an epic, something goofy and stupid will suffice... but this story/motivation was... ho-hum.
All in all, an awesome effort with some directional flaws as opposed to design flaws (in my opinion). Great work and congratulations on the views and score.
[Note: My 7 of 10 indicates a good game, but not a great game. 5 for me is average, or indifference, whereas a 6 may be likened to a B-. A 7 is a B... enjoyable... but not exceptional in any way]