Nice entry, looking good. Well playable. I do have some comments, that I would like to give you. You would have had a much more interesting look and feel by adding some slight animations and / or particle effects. Also the music could have helped you make it feel more intense as we progress the level, the closer to the end, the more energetic, or a higher pitch, would really benefit the game. Overall small changes, would make this game a lot better than it already is.

Great job!! It's so funny

It's a fun game that you can play with enjoyment.

This is awesome! The sound ques are neat. The idea very clever and the game mechanics work seamlessly! :) 

Very simple yet very effective! The sfx made it really satisfying :)

Fun game! I played several rounds. Well done!

The art, sounds, and movement were super nice! I love these sort of Atari style games, mayube instead of seperate levels you could speed it up on the same screen :) Just works for this style of game imo

Game is kinda hard but cute!!! keep it up bro!!!

Cute and nerdy! Love it!

Eating the viruses felt very satisfying with the "monch" sounds, very fun. The game is tough. Could barely keep up with the viruses running back and forth the whole time.

My immune system is down, RIP!

Good game works well, and think it has the right amount of challenge to it. Great work!

Love it. The music is great - the whole thing just works. Nice job.

Awesome game. Missing the boost :P Great submission.

Amazing game! Simple , unique and fun!

Solid game! Everything worked as expected, no cheesing by moving faster on diagonal movements. All good stuff. I didn't have any trouble, only a few instances where the RNG knocked me some balls I couldn't reach (I kept getting tennis comparisons during the game for some reason lol)

Only small suggestions are that as the game is keyboard only the next level buttons could be controlled by keyboard too. Also maybe the speed could be optionally tweaked via difficulty modes (I'm a semi-old codger but I could have taken 25% faster speed even on the last level without too much stress)

A nice simple game, I think with a couple of extra gameplay additions or variations on things could take it to the next level

Such a fun retro-inspired concept! Loved the multiplier mechanic and wave escalation. Would love to see more levels or upgrades!

Simple, clear, fun, and very satisfying. 

One frustrating thing though is that you can't always get all the viruses. Sometimes it's just impossible to go from one side to the other because of the speed limit of the white cell.

Other than that, it was great! Well done, very well made! I really enjoyed it!