Pink Rose Garden Touhou is a Bullet HellShoot 'em Up, made by followers and friends of Let's Player Pink Kitty Rose. The game is a collective effort of the members of her forums. As the name suggests, the gameplay is inspired by the Touhou series. It also has an alternate mode, called Extra Mode, with gameplay mostly inspired from Akai Katana and the DonPachi franchise.The game lets you play as Pink or her friend Black Raiden, as they attempt to quell some sort of rebellion. It's pretty vague, and the game overall doesn't take itself seriously. Extra Mode goes a step further in that it has no plot or dialouge to speak of.The game can be found here.
Pink Rose Garden Touhou contains examples of:
Amazing Technicolor Battlefield: Some spellcards will change the background to something much more colourful. The boss battle in the final stage, however, really takes the cake.
Genre Shift: The main game mode mechanics play similar to any conventional Touhou game, with bosses using Spellcards. Extra Mode isn't that different as far as the stages are concerned, but the mechanics are completetly different and more akin to Akai Katana, not to mention every boss now has Humongous Mecha or something similar.
Mordor: Stage 4. Apparently, this is from the bosses sparring.
Multiple Endings: Like in any Touhou, the main game has two endings for each character, depending on your performance in gameplay.
No Fourth Wall: The player characters and most bosses are aware that they are in a game, what kind of game it is and aren't shy to mention it.
The Power of Rock: Stage 4. Both the stage AND boss tracks are metal, and Hazzard EX's mecha is a gigantic guitar.
Shout-Out: Considering that everybody behind the game is a nerd, there are plenty.
Stage 3 is entirely inspired by a Mario castle, right down to the Boss.
In the main game, every boss has "Inspired Danmaku" as their final spellcard and each is taken directly from a spellcard from a Touhou character.
When playing as Raiden, the Stage 4 midboss, George the Raccoon, makes a rather blunt Kingdom Hearts reference.
The introduction to the Extra mode stage 6 boss is pretty much a blatant copy of Crimzon Clover's stage 5 boss. Furthermore, the way it explodes halfway through the fight and changes the music is entirely reminiscent of DoDonPachi SaiDaiOuJou's final boss.
It's rather common to see helimets. UFO Kirby also makes a few appearances in stage 4, and the stage 6 midboss, KK Slix, is a Telly.
The use of Armored Armadillo's theme in stage 1 is a possible nod to Shagg's "Roahm Will Never Play Mega Man X" video, in which he put lyrics over it.
The stage 3 boss in Extra mode is actually a nod to Katawa Shoujo of all things, though one could be forgiven for missing it. After his first phase, every subsequent phase changes his mech's color to match one of the leading ladies from Katawa Shoujo, and the bullet patterns are inspired either by their personality or disability.