First of all, this game is an adult eroge featuring multiple heavy NSFW sprites and CGs. For those who don't mind adult games, read on.
Mirror is a Match-3 RPG style strategy game that carries the story through the use of visual novel elements. Artwork is done by KAGAMI WORKs and Paradise Project which features 8 different short stories that are viewed through a magic mirror. Starting with the dark elf Daisy, a different monster or character will fight the specific female character through the end of each story arc. The magic mirror will reveal more female characters after reaching the end of each story arc. The story revolves around the following characters: Daisy: A dark elf who steals from the rich to give to the poor. Yoko: An archer and priestess of a shrine in Kyoto who defends the city from monsters. Cai Yun: A Chinese zombie who lies sealed inside a cave and awaits the return of the next reincarnation of her former lover and fellow disciple. Lin: An ice dragon who serves a family of dragon knights as the family's maid. Unita: An orc she-warrior who has to hunt and slay a ferocious monster to be recognized as a warrior in her tribe. Ketsuno Ana: A shogun girl from ancient Japan who somehow ended up at a modern Comicon (anime exhibition for otakus) and was mistaken for a cosplayer. Ebony (Augie Terry): A queen of the Empire of Yellow Sand with grand ambitions to attain divinity at all costs. Martha: A nun who works at a convent to distribute food to the needy and spreading god's message. In the Lost Shards DLC, there are an additional 4 short stories that are viewed through the magic mirror. The additional stories revolve around these characters: Leah and Koichi: A schoolgirl who is bullied at school and faces sexual assaults by several characters while her classmate Koichi has a crush on her. Madoka and Ryujo: A childlike girl who recently moved into a new town with her brother Ryujo she simply calls nii. Mafercca Rossi and Arroyo Ashe: A succubus alchemist who will go to great lengths to experiment with many different potions, and on her new test subject Arroyo Ashe who is afflicted with a demon curse. Hill and Ronald: A slave animal girl who is constantly being traded and abused under different masters while a mercenary Ronald has taking a liking to her and is prepared to redeem her. Having spent 21 hours to reach all endings and obtain all achievements in this game, I can say that the storyline in this game can be very controversial with multiple instances of BDSM, sexual assault, and physical torture. Here is where I will mention a warning to all readers that if these controversial themes feel uncomfortable, look elsewhere, otherwise read on. Plot and character backgrounds Despite the controversial, dark, and adult subject matter among the short stories in this game, I would still praise the scriptwriter for having the imagination to come up with eight different short stories that are different from the usual fare in a fantasy or romance story. They do this by combining both genres to tell 8 different stories of lost romance where 8 different characters or monsters might feel compelled to punish, excite, or fight each girl. These all lead to different routes; a pain route, a pleasure route, and a combat route across 3 different Match-3 stages.
Although most of them have selfish and unsavory motives on each girl, they also have an additional layer of complexity to describe and spur that motivation. A few of the characters are more wholesome yet they are forced due to circumstances to act in that way which also adds to the complexity of such a romance. This results in excellent storytelling which not many short stories have.
After patch updates in November 2017 and September 2018, the game has fewer errors in the English version. In the Lost Shards DLC, each short story has a few scenes and dialogue before each Match-3 battle and the male lead character in each story arc has more depth in their character and complexity and a bigger role now. Also, there is a short cameo appearance of three lookalikes who resemble the three heroines from Paradise Project's earlier title Hell Girls.
The artwork in this game is excellent by being attractive and colourful. The CGs use a large variety of different colours while each female character has animated sprites with different facial expressions and blinking eyes as the player does battle with them during the Match-3 and Tame segments of the game. The opening theme will show various CGs, background scenes, the cast of characters, and character voice list with great animation throughout. The game also has great artwork in the game cover, Steam achievement icons, badges, emoticons, and profile backgrounds. For those who prefer to uncensor the game and remove the flowers and SakuraGame rabbit in the Steam version of this game, a patch for this game is available by searching through the game's discussion boards, some of the reviews, or from certain Steam groups.
There are also more non-H CGs that are top-notch in the Lost Shards and Enchanting Reflections DLC. The Cosplay DLC has an additional 240 photos of female cosplayers featuring all 12 girls in the game. The Enchanting Reflections DLC features an additional 48 non-H CGs with 4 CGs of each character in the game.