Nice guide!
Some stuff I'll add:
1. Never, ever, ever, ever, ever try to throw kings at your left. You'll get a terrible reputation, and in non-anon (even in some anon games, since your strat is easily identifiable), you'll most likely be the target of point-gifting and practices like that (I'm talking about the beginning of the game. Late-game, you should only do it if you have no hope for the center).
2. "Quick/Slick/Dirty moves": Done on the player to your immediate left. When they expect you to capture, don't, instead, step back. This'll drain their time. When you expect them to capture you, step back, you may get a free king. In the center, you can sometimes hang a king and pick off theirs (if they only have one king in the center) Box mentioned this, I thought I'd elaborate on it a bit.
3. Yes, you can usually identify a decent hyperbullet player by 2600+. However tilt is exemplified in hyperbullet (for example, my peak is 2800+, right now I'm 2400).
But overall, this is a really great guide, nice one Box!
First time trying to make a variant guide on a variant I know literally nothing about
Here's some tips for beginners. If anyone who is actually good at WFT wants to add something, that would be great lol
1. Openings don't matter. Just capture both pawns at the start, and you can't really go wrong. If you are teamed and have two captures available, always capture whatever is closer to your king.
2. Go for the center. You can usually mate your left by throwing kings at them, but that gets you 2nd at most (unless you already have central influence, which is rare), which is not the goal (well it is for a certain person, but whatever).
3. In a game with multiple decent players, you will often see that many players have a few kings in the center, but no one really controls it. In that case, it's time to start harassing your left. The most obvious way is to threaten to capture a hanging king and hope they premove. This is only really advisable if that king is in the center, where it actually matters. Most of the kings don't matter. A strategy employed by almost all of the top WFT II hyper players is to threaten a king-trade with their left, and after the left premoves, the player moves their king back. The left usually will premove a recapture to the trade, but since the player didn't take the trade, the left loses quite a bit of time.
4. Well, I already mentioned premoves. If you have not, go to the 4PC settings and enable premoves. This applies to all hyper game modes, not just WFT II. You should be premoving almost every move. Guard against the strategies in 3. by making your kings protect each other and preparing to make a quick non-recapture move in case your right is a strong player threatening a capture.
5. If a player to your right resigns/flags, don't go after it with two kings. If you do so, you risk driving it towards your opposite, who may steal the mate. Instead, just go with one king. Give checks in a way that gives the dead king the most chance not to capture you. Even if it does, it will be moving closer to you with the capture, and you can send another king. Kings aren't really important (Kings aren't really important - a chess player). If the player is to your left, you should only go after it if it is clear that your opposite is not doing so. They usually will though; keep in mind that they are your left now, so you can use tricks on them to seize more control of the center.
6. Never go for early KOTH. You can sometimes surprise people and get an easy win, but you will lose more than you win. Strong players will have fake kings in the center anyway, so it won't be possible.
7. Try to interact as little as possible with your right. They will be harassing you the whole game; don't offer trades or anything. If they spam-attack you with a bunch of kings, don't let them get too many checks. Of course, you might fall low on time, so just try to trade as much as possible to not get last. You can also move your king towards the left to make it more difficult to kill. This usually only happens when you mess up the opening and the right gets 2-3 sacrifice checks on you. If you're careful, you'll be fine unless your right is a super-troll (like a certain person...).
8. Play according to your opponents. I mentioned that playing for 2nd is bad, but if you are against a really strong player, you can play for 2nd. Just throw kings at your left. If your left is a really strong player, try to trade as much as possible and otherwise play normally. Of course, you can still play for first, though that is unlikely to work. Really strong indicates 2600+, usually top 3 of the quickthrone leaderboard.
9. When there are two players left, whoever has more center control wins. If center control is balanced, whoever has more time wins. If time is balanced, the last strategy in 3. will make someone win. You are their left and they are your left, so you can play tricks but you have to be wary of getting tricked as well. Flood the center with kings, and bring your real king there too once you have 6-8 fake ones. The threat of KOTH will force the opponent to not premove, so they will flag.
10. In a few situations, your opposite will expect you to team on one of your sides. If this is the quickthrone tournament, do whatever you want. Typically it's a good idea to team your left, but not your right, since your right can punish you for it later. But if it's a random queue, you should always team. Odds are that is the only WFT II hyper game going on, so you may have to play with the same people multiple times. If someone doesn't like how you play, they can try to revenge-attack you, and 4PC players are known to be extremely petty. This isn't a problem in the quickthrone tournament since you can just wait for the queue to fill up and join the next game, as there are often 3+ games going on at once.
disclaimer: I'm not actually good at this lmao. This is from spectating. Anyone have any additions?