Holy **** dude that's awesome! You should tweet that at them or post it on the subreddit! Makes me wonder what the "world record" is for lives on this game...
I know that in older versions of the game, there was a glitch with the fourth (hardest, IMO) boss where you could essentially immobilize him until he was dead, and the speedrun world record holder was able to beat it in 13 minutes, 41 seconds with 4 children.
However, once that glitch was fixed, the same guy was able to do it in 21 minutes, 10 seconds with 7 children, so as far as I know, I'm tied with the world record for children.
http://www.twitch.tv/smitetv/c/2581669He essentially takes advantage of the shinobi's super-high attack strength, though I usually have better luck with the barbarian king or regular ol' knight.
Edit: Though he
did use a gamepad, while I just use my keyboard, so I can probably say I have the world record while using a keyboard, lol.