(Batman: Arkham Asylum/My Little Crossover)

Now in the six years of her career, the Dark Mare apprehended Manehattan's most murderous, maniacal, most dangerous criminal, the Mane-iac after a failed attempt of killing the Mayor.

After taking her to the infamous Arkham Asylum, Batmare was suspicious of Mane-iac's surrender and escorted her throughout the asylum. Too late, Mane-iac escaped and planned a few killer surprises in store for our Dark Mare. Not only Batmare has to take out Mane-iac but all the criminals in Batmare's Rogue Gallery and the visiting Blackgate convicts. She needs to stop Mane-iac before she unleashes a chaotic catastrophe that can mean Manehattan's end.

Princess Celestia was kind and fair ruler, until the day her soon to be husband was kill. Angry at Discord for tricking into killing some one she love, she kill him. But that was only the start. Celestia change the rule of Equestria making it into One-Equestria Regime. With the Mane Six backing her up and most villains now helping, it appear that Equestria has fallen into dark times. There is only one pony that fights Celestia's rule and that her younger sister, Princess Luna. Luna wants to stop her sister, but without the Elements of Harmony and one of the bearers dead, Luna must bring help from other world, another Equestria, untouched by evil. In that world, Princess Celestia is still a kind and fair ruler and the Mane Six still fight for Harmony. Drawing in, Twilight Sparkle, Pinkie Pie, Rarity, Shining Armor and even that worlds Discord and Princess Luna, Luna set out to end her evil sister rule.

Chapter 1 Princess Luna-Done
Chapter 2 Twilight Sparkle
Chapter 3 Shining Armor
Chapter 4 Discord
Chapter 5 Pinkie Pie
Chapter 6 Applejack
Chapter 7 Lightning Dust
Chapter 8 Princess Luna
Chapter 9 Prince Blueblood
Chapter 10 Rainbow Dash
Chapter 11 Rarity
Chapter 12 Princess Celestia