Use arrow keys to move and space to shoot. That is all.
Finally! I know I took way too long, Don't get your panties in a bunch. Maybe. Also, This wasn't easy, So if you can, Take the extra effort and hit the "love it" button. But it is a lot of work. Well do it if you're up to it. Note: Scratch 2.0 hates the awesomeness 8-bit NES sprites and thus makes them look funny. That is all.