Use the arrow keys to move around, not wasd, and press space to shoot meteors and thugs, defeat thug guards and meteor at the same time, once you defeat ten thugs, your level goes up, and your score resets. Progress through the levels to get to the final boss and defeat it.
Once you defeat the thug boss and progress through the levels. It will tell you a small amount of information. Sit tight for meteor punch for to figure out why there are so many meteorites aiming for earth. Thank you to @Tralaxy for the intro. Thank you to @PandaTimmyMrT
