In addition to Ryu Hayabusa, the 4 female characters Ayane, Rachel, Momiji, and Kasumi are also playable. Pair up favorite characters, and switch between characters during battles. In addition, the characters that are playable and scenes (modes) vary for each title.
Great game if you like tactical RPG! If you don't know what a tactical RPG is, think Fire Emblem and you get similar idea on the gameplay of this game. I will admit, it's ton of fun. My biggest complant is there no skip cut-scene button until you beat a level the first time. So retrying some levels can be very annoying. But it's pretty fun and honestly the hardest part is the early game.
Genesis covers all the UC timeline from Mobile Suit Gundam to Iron-Blooded Orphans. If you like Tactical Turn-Based battles and Mobile Suit Gundam, then you will definitely need to check this out.