buttons, gameplay & bugs
first of i think by now u should have realized the button problem ....
next is that the normal stages are just much too easy ... waving around up and down while shooting the whole time sholves the problem ... and the boss is kinda really difficult - it did catch me by surprise to be honest
also did i find myself in the problem to choose between moving backwards and forwars oder moving up and down cause hitting both keys at the same time resulted in zero movement