I agree just a little more polish otherwise very fun game. :) I got all the guns, auto shotgun knocks you back so far I was afraid to use it near those platforms in case I fell off ^^
you can also just kinda fly with the auto shotgun, you can basically skip all of the platforming in the last level.
Oh I actually tried that but I guess I was doing it wrong ^^ I was just shooting down? do you have to alternate down/left?