I'll just post'em here in numpad notation
A = Light Attack
B = Medium Attack
C = Heavy Attack
X = Special Attack
Y = Mana Move
Z = Summon
| = Delay
Nitro's Combo (w/ Demon Summon):
"A, 2A x3, B, C, Z, A, 2A x2, B, C, 2D, M"
Aliza Combo (w/ Uppercut Summon):
"A, 2A x2, B, C, 6A, X| 9, a.(A, B, C, Z), A, B, C, 6A, 6X, Y"
"A, 2A x2, B, C, 6A, X, 2Y| 9, a.(A, B, C, X, Z), A, B, C, [as many times as possible] x(6A, 6X), Z"
"7, a.(B, C, X)| 9, a.(A, B, C, Z), A, B, C, 6A, 6X, Y"