Hey Bashudev,
Good Job!
Just a few little things What I noticed in regards to UX
Your menu screen looks a little bit messy, the transparency effect for the background gives a rusty underwater feeling, but the button you make is not matching with it.
The game scene is full of intense colours. Both scenes do not match with each other, it's missing consistency.
Game Scene is missing the navigation menu back to the button, the user needs to reload the page each time to restart the game, which is not convenient.
Keep going!
Rasa