How do I "win" these? Hitting the tentacles stop them from absorbing the enemies. We know absorbing the enemies cause it to grow, and we lose when it blows up. And it blows up because it absorbed too many enemies.

So how do we damage the thing and "win" it? Is it possible duo? I was trying to duo it with a friend but the tentacles are coming (wow, first time I can say that in a PG related context) at too fast of a rate, we barely have enough time to take one down before another comes back up.

Meanwhile are we expected to keep damaging the thing? Does one guy stay on tentacle killing duty while the other continues to wail at the big blob?