Space Impact GameBoy Beta

I tried to port Space Impact from old Nokia Phones to GameBoy platform.
Thank you for any Feedback.

----Controls on webplay----

Up - Up Arrow / W  

Down - Down Arrow / S   

A - Alt / Z / J   (Fire Weapon)

Left - Left Arrow / A [Unused]

Right - Right Arrow / D  [Unused] 

B - Ctrl / K / X   [Unused Yet]

Start - Enter   [Unused Yet]

Select - Shift  [Unused]