Magical Battle Arena/YMMV

Excuse Plot (The plot is mainly a justification on how and why various Magical Girls from different worlds are beating each other up)
Game Breaker : Lina Inverse in her Lord of Nightmares mode. Don't believe me? Look for yourself and see.
Goddamn Bats (The Gadget Drones)
Memetic Mutation (Not the source of one, but StrikerS Nanoha's Desperation Attack is the product of one. Hint: See her pose in the main page's image.)
Ultimate Showdown of Ultimate Destiny (Pretty much the reason this was made)