DJ Max Portable 2 is a perfect example of Korean dick-wagging.
Every key chart above 11s and 12s are pretty much guaranteed to be complete fucking garbage. I could probably make a better chart by slamming my head against my keyboard repeatedly; no joke. They managed to make even 4-key mode unfun with the higher difficulty charts. They use patterns that are just flat-out awkward to hit on the PSP or, for that matter, use combinations like up-left and up-right, which are annoying to hit quickly with the PSP's flawed d-pad. They use combinations that don't make ANY sense given the platform, like circle, square, right, left, with annoying regularity. Generally, however, they just make the charts incredibly lame mash-fests.
Now note that this doesn't imply that the game is bad. No, most of the 10s and under are wicked fun! Seriously, this has to be one of the better PSP games in existence. The harder charts are just like Pump's. They have absolutely no value to them other than to exclaim "HAHA IM HARDER THEN JAP GAEM LOL." It's fucking lame.
Another thing that pisses me off is that they lock 8-key mode up tight. DJMP has a fairly fun 8-button mode, where the shoulder buttons are used in addition to the upper face buttons. There are two major problems. For one, you completely lose the ability to change the speed mod in mid-song (even in the pause menu, for some stupid reason). Secondly, and most horribly of all, in DJMP2 there is no obvious way to unlock 8-key mode in anything but hard mode. I know it's possible to play it in normal mode, but nobody seems to know how to unlock it. This kind of boggles the mind, really. Think about it; you have a mode that takes a ton of practice to be able to read and it's only available on the hardest mode of play. Makes no fucking sense.
You're probably thinking, "so?" at this point. I can totally understand this if you've never seen DJMP2 on hard mode. I didn't think it would be that bad, either, until I actually tried it. Hard mode is probably the second best example of dick-wagging present in this game. The timing feels tighter than IIDX. Yes, that's right. It's harder for me to get a 100% on a note than it is to get a just great in any IIDX game. It might not be so much that it's tighter, but that the songs aren't as well synced as they are in IIDX...not even close. In addition to this, getting a single miss takes something like a quarter of your lifebar away. I used items to increase the amount of life I have and it still takes about a sixth of it away WITH EVERY MISS. Is that enough?! Holy shit. And I'm supposed to learn how to play a new game mode like that? Fuck that.
It's rare that companies manage to do so much wrong to a game that does so much right. If they would have pulled their heads out of their asses they would have had a game that completely blew away its predecessor. Instead, you get a game with a better song selection (in my opinion, obviously), better lower-level keycharts, a crippled 8-key system, a hard mode that shouldn't exist, and hard charts that nobody in their right mind would make. Wow.
To elaborate on the "Korean dick-wagging" remark, this sort of thing reminds me of the more difficult PIU charts. Some of them are, quite literally, impossible, and the only reason they are in there is to say "LOL OUR GAEM IS HRDIST." Yeah. That's going to make me want to play. Give me something fun to play, not something I couldn't even bring myself to look at.