This was a really smooth collection game! I was able to get through and win after a few minutes with very little frustration. I only had two problems I encountered - I was able to move to the left, but nothing spawned over there, and sometimes I couldnt jump up between platforms and got stuck between bad data and enemies.
It also looks like the player is animating a little too quick - I'm not good enough with JS and phaser to understand the best fix for that, but you may be able to work around that kind of thing by simply repeating the same frames a few times before moving to the next one!