If this is your first game, I can understand its flaws. Overall I didn't enjoy the game. Every time I restart, the camera keeps panning back to wherever the place was and I can't see the platforms below me. So jumping to move down feels like a gamble hoping there are no enemies where I land but often times that was the case and I kept dying.
The level designs are confusing because there are places that leads to nowhere and would get me stuck because I couldn't go back to where I came from.
Overall, if this is your first time, good job on making it and submitting it here. Otherwise, I hope this was intentionally a rage game.