just had my most epic agario session so far. was the same four to five people hovering around the top 5 spots, #1 would get popped by a virus and drop down a few spaces, then come back up and repeat. i held #1 a few times for a few minutes each time. finally i got popped by two viruses at once and ended up with just a little 27 mass cell after the rest of me got eaten up, so i exited. was soooooo epic tho lol. wish i had been taking video.
also, when i first started playing this game i thought it was mostly luck. there's a ton of skill, though. i consistently make it to the top 5 every time i play now.