I used mostly free assets for this. Thanks to the authors of the amazing assets!
It’s got a few good ideas in there but a few things are holding it back.
It seems like having double jump is a requirement rather than a bonus, without double jump it was very difficult to move upwards, and if there were no platforms to dash to, I couldn’t progress at all.
I feel like the dash is quite a fun mechanic, but I barely had to use it. Once I had double jump I could just jump to the side and then onto the platform above which was faster than dashing to a side platform and then dashing back.
If you made platforms spawn to the sides more often (to dash to) then you could reduce the amount of double jump powerups, and make dash more useful.
It seems like the camera always keeps up with you, so it feels like you’re not making progress at all. Maybe it could keep up with you once you reach the centre of the screen?
Also displaying your high score is always a nice addition in these types of games 
Keep up the good work, I’ll keep an eye out for updates.