State 7 - Defend
Using state: 7 protects your character from attacks. He can block as long as he has enough bdefend: and fall: points to block the attack. If he loses all of his bdefend: and fall: points, his defense will break or he may fall down.
Technical note
State 7, the defending state is a well-known state for developing special characters.
Apart from its defense system which is well covered by others, there are something regarding hit_x keys about state: 7.
If a character is in state 7 and frame 110, and takes a blow that doesn't break his defense, he will go to frame 111.
Taking a blow that doesn't break defense outside frame 100 won't change frame.
Breaking defense makes character go to 112, but if character is in air or grabbed into state: 7 frame, his state: 7 frame cannot be broken.
Nonetheless an attack with bdefend >60 can negate state: 7.
If a character in frame 110 (but not necessary in state: 7), he can change his direction if he presses opposite direction key as his current facing.
This only affects frame 110.