bro awesome game good job !

Some Points !

Not in order !

• Even if I reduce the volume to min the music would not mute it would be playing
• U could have used a better font and sprites(for lives not player)  !
• The scollspeed of the instructions was very high was very difficult to read everything but managed to do
• Changing the difficulty did not do anything according to me (or i have felt like that)
• The was little difficult for beginners but if u play regularly that won't be a problem 

and as @Maultaschenprinz different colour themes will be better

even I don't really see the connection to the theme !!

If you are ok can you share the game engine's name !

The webGL loaded in seconds which i don't see that often