I might be a bit late, but Touhou 12.8 is out.
The game plays somewhat like a fusion of the Shoot the Bullet series and the Phantasmagoria series, combined with "standard" Touhou gameplay. Cirno is able to shoot regularly, but also possesses a new "freezing" technique that adds a new twist to the game. Similar to Aya's camera, Cirno has a counter that fills up during gameplay. To activate this technique, hold and release the shot button. When activated, Cirno's freeze attack will attack the immediate area directly in front of her, and freeze any bullets it comes in contact with for a duration proportionate to the level of charge % before vanishing afterward. When other bullets come into contact with frozen bullets, they too will freeze, allowing for large chains to be frozen in this way. Points and bombs are awarded for freezing large numbers of bullets.
Like the main-series games, Fairy Wars contains full stages each home to their own specific midboss and boss. However, Cirno is the only playable character, and there are only three stages during a playthrough instead of six. On the other hand, though, there are six different "routes" the player may choose to take, depending on which order they choose to play the three stages in. There is also a seventh extra route which must be unlocked before being playable.
Pretty difficult game, can't get to the last stage without using continues yet, oh well, I'll keep trying.
Extra stage part 1
Shoot the bullet(Touhou 9.5), Double Spoiler(Touhou 12.5) and Phantasmagoria of Flower View(Touhou 9) will also get their separate blog posts eventually.