Use arrow keys to move, and hold/tap space to shoot. Do not hit your body or the walls. Your life is the green bar, you lose more the longer you were. Reach a length of 30 to regain 5 life Kill the enemies before they get to you or the bottom. Hit the ducks to get a random power-up.
Note: You cannot move to the direction opposite of what you are facing, this was because people who tested it kept going side to side. Your snake also grows upon killing enemies. I also made this project over the course of a weekend, so... enjoy!