Ok the bleach code is a little confusing
First (doesnt matter what character you are) buy two orochimarus rings from one of the shops at your base then you wait.
Then as soon as the game timer says 2:00 type in the code -bleach then as long as someone else didnt do the same thing it should work.
Ichigos attack are Moon fang.Bankai,Hollow Transformation (another move is added when in this form) ,and something else i cant remember