White Blood Cell Game Remix

You are a white blood cell trying in a bloodstream trying to get rid of bacteria, which are blue. Use the arrow keys to move the white blood cell up, down, left and right. Your goal is to get as high of a score as possible before the time runs out. The time is shown in the top right while the score is shown in the top left. If at any point your score reaches below 0, you lose on the spot. Every time you destroy a bacteria by touching it with the white blood cell, you get 10 points. Every time you let a bacteria through, you lose 10 points. Avoid the dark green and bright purple viruses. They are much smaller than the white blood cell. Though there is no penalty for letting them through, you lose 20 points for touching a dark green virus, and 9999 points for touching the purple virus (essentially it's an automatic loss). The dark green virus is very common while the purple virus is rare. The viruses and bacteria all come from the right and move left. If you feel like it is worth it, or you need extra help, you can summon nanobots by pressing space. A nanobot will spawn from the left side of the screen and go right. Though nothing happens when the white blood cell touches one, the nanobot will kill all bacteria and viruses in its path until it expires at the right side of the screen. You gain 10 points for every dark green virus, 20 points for every bacteria, and 200 points for every purple virus eliminated by a nanobot. Don't be careless with your nanobots though. You lose 40 points every time you use them, and they are as small as a virus, making the area they affect small. Those are all the rules for this game. Hope you have fun!

TL;DR (still pretty long)

You are the white blood cell, and move with the arrow keys. Try to hit as many bacteria as possible without letting any through, while avoiding all viruses. Bacteria are blue, and viruses are dark green and purple (also very small). You can also summon nanobots to help you. The goal is to get the highest score possible before time runs out. You gain points every time you touch a bacteria or one of your nanobots eliminates a bacteria or virus. You lose points when you touch a virus, let bacteria go through, and when initially summoning a nanobot. Good luck!