Talk:Achievements/@comment-68.104.49.23-20131111214340/@comment-24.47.236.255-20131114043702

yes, thats exactly it. just got this one. i did it with Han-D since his move gives a decent amount of knockback. when i got to this level, i just went straight for the bottom left of the map, ignoring the teleporter and just waited until the whorls showed up.

it may or may not help to kill/"drown" other enemies as well to get the game to spawn more whorls.

also, i'm fairly sure that it is 20 overall, not just 20 in one game. i attempted this twice, got a couple on my first attempt and i don't think i got 20 in the attempt, but i wasn't counting either.