TV commentary:
Doctor Who- Hmm, interesting.
( spoiler cut )The Strain- I was right!
( spoiler cut )WO blather- finally beat gauntlet mode and unlocked Hundun. I was lucky, when I realized the benefit of having Xu Shu in Gauntlet mode, somehow the next stage I played I randomly unlocked him- he was standing right there as the stage started. But yeah, he's the most OP character in the game with his R1- its not self sustaining as absorb/osmosis don't activate on it. But with alacrity, that basically gives the benefit of elixir, not winged boots like the description says. Since his R1 hits so many times, you can rapid tap like three or four of them in a second and easily reach the 500 hit combo mark to fully heal your health and musou.
And that's for the ENTIRE party, not just him. Which is obviously incredibly useful in gauntlet mode. But yeah, given the broken-ness of his r1, I went for tri-element/windslay/agility/blast/frenzy+10, wrath, alacrity and aggression to maximize the broken-ness. Agility of course to keep increase his attack speed (not that he needs it, but it definitely doesn't hurt). Since his R1 is a volley of arrows, I assume blast affects it. But yeah, frenzy will also boost his R1. Tri-element and windslay to get all the elements, and wrath to let them activate on his r1/musou. And since I'm doing at least 500 hit combos to activate alacrity, that means aggression would activate, doubling his attack power on top of all those buffs.
So even in high levels in the dungeon, he's still pretty bad-ass. Getting some good formations and knowing how they worked also helped. The subterranean formation was good, because it had "secret", which let the enemies ignore you and was helpful in getting some more breathing room. (not that I need much with Xu Shu's r1), then there was solstice formation, which had the "getaway" power, which would warp you immediately to the exit.
So, I used solstice to just rush to the end. Unfortunately, since Hundun wasn't next to the exit, I still had to walk up to him manually. But yeah, I was worried, because people said it was going to be a hard fight, but nope, Xu Shu's cheesiness ended it in less than a minute. Once the was caught in it, he was as good as dead.
So now I have all the characters unlocked- but yeah, the new "bosses" Tamamo, Kyubi, and Hundun are all ridiculously powerful and thus fun to play.