
Chaos Code: NSoC - Arcade Mode - Hardest - Hermes - Ending B
Chaos Code: New Sign of Catastrophe
Arcade Mode - Ending B (Secret Ending)
Character: Hermes
CPU level: 8 (Hardest)
*To get the secret ending you must to finish 4 rounds with any super move until the 3rd stage without using continues. If you fulfill all these conditions, you will receive a "here comes a new challenger" alert after the 3rd stage and fight an extra battle. After receiving the "here comes a new challenger" alert, you only need to finish the game to get the ending B (continues are allowed).
*These number of super finishes changes if you change the number of rounds in the options before starting the arcade mode. I think you must to do super finishes in 2/3 of the total rounds.
* It is also possible get the challenger battle after stage 6, but I don't know the exact requirements. Probably is "avoiding using continues" and "a certain number of super finishes".