For me, my biggest disappointment of this year is easily Phantasy Star Online 2. Let me list the crap that you have to deal with:

- cheaters are frequent enough, leaders in cheating being the gold farmers with their bot farms - funnily enough if you are seen around the cheaters and someone reports you, there is a huge chance you are going to get banned permanently even if you aren't cheating actively (!!!)
- you can't trade in this game unless you pay 1300 yen monthly for the premium set
- you can't sell in the player shops without a shop pass (600 yen) or the premium set (again, 1300 yen)
- you can't drop everything you want on the ground like you could do in Phantasy Star Online, you can only drop consumables
- the combat is nice for the first 100 hours but after that you realise that game is so easy because of movement you get with this title the monsters were indirectly dumbed down comparing it to Phantasy Star Online (dumbed down, more like, in first PSO they were dumb but at least they moved towards you, here you have lazy apes picking their noses and scratching their butts while rolling the dice to decide if they will attack you or not)
- the game has plenty of scams in it, resetting skill trees costs more than buying a new tree; the newest scam in this game is a "in-game currency" shop with "really good weapons" which are really mediocre until you "upgrade" them to the maximum and "upgrading" them to maximum without "full protections" (they protect you from the gear not going down in the upgrades, if you fail upgrading you stay at the level you were) which funnily enough are in the "gacha scratch" only (they are available in the player shops for around 10 hours of running in circles each) and people report that you need a lot of them (record I've heard was 13 used)
- map structures are really awful for 2012 standards, the maps generated by the game feel as if they were generated by an game from the nineties
- almost everything in this game is decided by an unfair random number generator, biggest offender being the situation where to fight the "current final boss" you need to check the game every hour to see if he appeared; imagine if in Spiral Knights there was still no mission system and with that in mind boss stratums only had a chance to appear. That's the kind of bad this is being
- gameguard; this shouldn't need too much explanation, I'll just say that it's a rootkit, likes to make your Windows BSOD
- to play one of the "advanced" (not really advanced, don't take it literally, just trying to make it easier to understand because it's basically paired - want to play the new melee class? Get the old melee class to level 30, same for ranged/technique) class you need to first level up the basic class to level 30 and if that isn't bad enough, if you want to have another character you need to repeat this process once again
- once you reach the level cap there is absolutely nothing to do outside of grinding other classes
- weapons in this game were dumbed down comparing it to Phantasy Star Online, every sword is equal to every sword with the difference only being the stats; there is no more specials on weapons, instead we get a shallow Photon Art system which gives you 8 Photon Arts per every weapon type which you can make into 3-item long combos; why is it shallow? Because most of the Photon Arts are so situational and even if the they fit situation you are better off just using the most popular Photon Art for each weapon
- there are no more for-more-than-one-class weapons in the sense of being able to use their specials (in this game, Photon Arts obviously), to use the Photon Arts you NEED to have the class which can use them as main class or sub-class
- races only differ by stats, you can't see anymore traps as casts, everyone has HP regen and "TP" regen (not really TP, in this game there is no TP, we have PP instead which covers Photon Arts AND Techniques)
- there is no equipment giving you special abilities like there was in Phantasy Star Online (yes, Trap Search for non-casts in Phantasy Star Online and all the gimmicky stuff, faster HP/TP regen or regen at all, technique specials on weapons [casting megid from one of the sabers]), instead all the stuff is hidden in skill trees so you don't get the the variety of just being able to swap gear to use something, instead, if you want new abilities you have to purchase a new skill tree and if that isn't bad enough, if it gets extended, you don't get to re-allocate your skill points for free just because SEGA decided to add/change something
- best summary: the game is basically a generic grinder just packed as Phantasy Star Online 2 which of you will get bored after some while