So this was great but a couple things:

1. I found a bug where if you die you keep moving and eventually you can slide off the world:

This would be fixed if you reset automatically when the player dies.

2. Is there an end???? I made it to this spot and waited around forever for a platform to bumble along and pick me up but it never did... Is this just the end here?Other than those two things it was a great game! You never go wrong with a simple platformer! Also nice artwork! Did you do it?

Really nice gameplay with a lot of polish ! 

Controls were very good and made me finish the game.  There a little stutter some times but I think it was something about animations or maybe the edges of the platforms not sure.  
I did not get the level with a mountain top.

I forgot to mention the spikes were not visible on the foreground and I fall on them a lot by not seeing them. Maybe an outline will be better?

What did the left path lead to?

Cute platformer, pretty challenging, mostly because of how light the player feels. Nice entry!

Pretty fun game and challenging, cant go wrong with a nice platformer ^^

Cool game, would be much better with some tweaks, like adding a coyote jump(or making timing more forgiving if it already is in the game), making jump height variable and restarting automatically when you lose

I little tricky with those controls. It felt like the player was a little weightless. You've got a good start to a platformer here.