up arrow key: shoot. left arrow key: move left. right arrow key: move right. if a alien touches you its game over normal aliens have 1 hp. and super aliens have 3. there is 2 regular bosses and 1 final boss. enjoy!
nintendo if you sue me then know I didn't know if the metroid music was copyrighted. also THE PLAYER IS NOT AMOGUS. this took 1 hour to make and it was (mostly) done by me.