Quote from Space Pirate Nithiel;1226429:
New QT3.14 Ninja NPC is winner.
It's only the 32 NPCs i listed previously XD
Also some more info i gathered together with Roy Yesterday
You have to choose a Main char after which you complete the Quest to get Gold, EXP, 1x 10th Anniversary Gift Box and 1x M Coin
If you relog you seem to get the Ideal Vote sticker along with a quest that requires you to talk to the Hammer Game dude, not sure if you actually need to start the game or just talk to him but if anything just find someone and start the game. Quest reward is more EXP, more Gold, another 10th Anniversary Box and another M Coin, after that you get another quest which requires you to talk to the Roulette Chick (I really thought it was Darts as the NPC does a Dart-throwing Animation and there's Darts on the Roulette boards....)
This quest rewards 1x Roulette Coin, 1x 10th Anniversary Box and 1x M Coin (And gold and EXP.... as most quests do XD)
The M Coins can be traded in to the NPC you registred your Main Character at for M Coin Boxes (3 Coins = 1 Box)
There's also a Theater Area where you can rent the Stage for a while just like on Doki Doki island.
Roulette Coins seem to not drop from Monsters at all and during the Event period it seems the Wolves are gone as the Event area isn't a Seperate one but actually Tir between the Moon Gate and the Commerce Post.
I can't really Confirm the rewards but
10th Anniversary Box can give out Revival Balloons with the Image of Starlet, Tarlach or Ferghus as well as the HS Props.
M Coin Box appearently can give Fireworks kit and the Balloons.
The Balloons are currently bugged and don't actually show up on your character
The Campfire Kit reward seems to be 'bugged' as well giving a ordinary one instead of the 10th Anniversary one (Unsure if that's intended or not)