Keyboard is not the issue here, I play with keyboard too. The issue is the controls.
Compare the controls with "Super Mario" from ZeroPaige. Those controls use the correct control scheme as established by Nintendo long ago - You press fire, Mario jumps, you steer left or right in mid air, Mario moves left or right mid air.
Classic correct control scheme. This game? Nah. Make a proper control scheme and I'd love to play it :)