So let's get right down to business, the characters and their themes:
Sonic the Hedgehog - Reimu Hakurei, Final Boss Theme
Egg Viper - Konngara/Sariel
Miles "Tails" Prower - Marisa Kirisame, Final Boss Theme
Egg Walker - Mecha Marisa
Knuckles the Echidna - Youmu Konpaku, Final Boss Theme
Chaos 6 - Saigyou Ayakashi
Amy Rose - Toyasotomimi no Miko, Final Boss Theme
Zero - Fujiwara no Mokou
Big the Cat - Alice Margatroid, Final Boss Theme
Chaos 6 - Shinki (Might change?)
E-102 Gamma - Reisen Udongein Inaba, Final Boss Theme
E-101 Beta - Eirin Yagokoro
Super Sonic - EX Reimu, Round 1/Ending Theme
Round 2/Final Boss
Perfect Chaos - Unleashed Yukari
Now, to the gameplay of each character.
Sonic/Reimu is fairly straight forward. Go through the stages, beat the boss at the end. She also has the most story out of all the characters, good good.
Tails/Marisa is another one that's straightforward, they go through stages as Sonic/Reimu do, but they race against an NPC along the way to the end. Since Marisa's boss is Mecha Marisa, each stage can be a race against Mecha Marisa [either to prove which is the 'best' or to prevent Mecha Marisa from doing something].
Knuckles/Youmu is where the gameplay is switched up a bit, you're no longer progressing to the end of the stage, you're searching for pieces of the Master Emerald/Parts of Yuyuko's Spirit. The Master Emerald was destroyed by Chaos, and Yuyuko was destroyed by the Saigyou Ayakashi. Which is their respective end bosses.
Amy/Miko is another character where you progress through the stage, but now the goal is to run from an enemy that cannot be defeated. Amy is doing this to protect herself and a bird. So Miko can be doing this to protect herself and Tewi (And be prepared for that Tewi thing because I'm gonna blow your frikkin' mind.)
Big the Cat goes LOL FISHING FOR A FROG in a Sonic Game. Take out the fishing entirely and have Alice going through stages to find her lost doll, Shanghai.
E-102 Gamma is arguably one of the more interesting characters. He only appears in Sonic Adventure [as far as I know], he's created by Robotnik. So, you can already tell how well things are working out for him. E-102 Gamma's gameplay consists of shooting your way to your objective. Reisen is therefore a logical choice.
Super Sonic is of course, where the entire story wraps up. This one consists of mostly story and cutscenes. And ends with getting the Chaos Emeralds, going Super Sonic, and beating Perfect Chaos. So, the same principle for EX Reimu applies.
Last edited by Amord on Sun Jul 08, 2012 12:55 am; edited 4 times in total