Hi Forgotten Mozhi,
You're not forgotten this time! I tried out your game. I have some experience that I could share.
The fact that you're posting this here and asking for feedback is a great first step into commiting on creating games. Personally, I really enjoy playing old school platformers, since I grew up with NES myself. I enjoyed the explanation in the beginning to get an understanding of what's going on. But immediately when I started playing I was disappointed that I couldn't aim with my mouse in 180 degrees, since my enemies could attack me from all angles. And that kinda made me lose interest immediately. Since there were so many enemies in the beginning, I had no chance in trying to figure out your physics, distances between jumps etc. And it's also a missed opportunity to not use a bit more verticality, especially since I couldn't aim in all directions. So you could fall and shoot mid-air more etc. Since I got frustrated immediately when I was trying to figure out the jump height, there were so many enemies attacking me in all directions. So try to be more gentle the first few minutes in a fast paced game and onboard the player to get naturally comfortable with the controls before jumping into jump/dodge action. Keep up the great work and good luck!