Kuro-puppy - Time for my Shiki 2 EXPLANATION!
Desu...
First...
CHARACTERS
Kotarou - Score. That's your focus in using him, he has complete Crap Shot and Hyperfire. Shiki is the most important tool for him, your modus operandi is...
Find Bullet -> Ride Bullet -> Use Shiki to score big.
Since his Shiki is homing, you won't have problems in bullet dodging.
Sayo - Broke! HYPERFIRE those losers! Her Shiki is tricky to use (especially on bosses).
Hyuga - Avoid like the plague!
Niigi - She's perfect for offensive types. Run into a LOT of Bullets and use Shiki, run into bullets and use Shiki, rinse and repeat.
Sasuke - His Shiki is a bit complex, rules on your movement. Don't make any silly moves with his Shiki 1 and you'll be fine.
Kim - Shiki 2, get near enemy, watch them die. Repeat.
Fumiko - She's tuned to be a Boss Killer more. Her basic attacks aren't that good.
EH? Your doesn't have those legendary dialogue (with award worthy voice acting) like...
Kotarou - You have two choices.
A) Beaten and Caught
B) Caught and Beaten