This one should be manageable in one-credit, right? Even then, we should think again there may be a stronger boss fighter that replaces Akira as the last opponent. I don't know how do you face her instead of Akira but I guess that you have to be really damn good in surviving everything as well as to fulfill special conditions needed for that.
Dengeki Bunko Fighting Climax is a licensed fighting game developed by Ecole and French Bread, the developers behind Melty Blood and Under Night In-Birth featuring characters from various Dengeki Bunko franchises. Don't expect this to be as great as Under Night In-Birth or Melty Blood though as some of the Dengeki Bunko franchises are found to be mediocre to me. Another strange thing is the game design. Why is the game taking place in various places from various Sega games? That is attracting unwanted audience and a bad idea when that happens. Not to mention that some of the fighters have some serious disadvantage from the way they attack but then, most of the fighters are really epic and badass although it's not the same for some spoilt fighters in terms of behavior. If you have known those Dengeki Bunko franchises, your opinions may affect your opportunity of playing as various licensed playable characters.
Version 2.0 also known as Ignition edition will have the Ignition attack in addition to Climax Arts as well as the fact that you can change characters after each round. There will be additional characters and stages but that's how the game is updated to newer versions. It was already out in the arcades in July this year and there will be a console version coming for Playstation 3, 4 and Vita by the year-end. The original one was also out in the arcades last year with All.NET Plus support where you can use your Aime card to record your progress similar to Nesica X Live arcade games.