U = Up
D = Down
L = Left
R = Right
F = Forward
B = Back
J = Jump
Sj = Super jump (D, U or LK+MK+HK)
OTG = Off The Ground - A common status where your character is knocked down, but can still be hit
LP = Light Punch
MP = Medium Punch
HP = Heavy Punch
LK = Light Kick
MK = Medium Kick
HK = Heavy Kick
D, D, Start = taunt
P = any punch button
K - any kick button
PP = any 2 punch buttons simultaneously
KK = any 2 kick buttons simultaneously
3P = dash (F, F or B, B), or press all 3 punch buttons simultaneously (LP+MP+HP) (note: You can forward dash or back dash, and cancel your dash by walking in the opposite direction)
3K = super jump alternate input or press all 3 kick buttons simultaneously (LP+MP+HP)(LK+MK+HK)
QCF/236 = Quarter Circle Forward (D, DF, F)
QCB/214 = Quater Circle Back (D, DB, B)
HCB/63214 = Half Circle Back (F, DF, D, DB, B)
HCF/41236 = Half Circle Forward (B, DB, D, DF, F)
DP/623 = Dragon Punch Motion (F, D, DF)
QCD/412 = Quarter Circle Down (B, DB, D)
QCD+P/412+P = Infinity Counter (B, DB, D + P while blocking on the ground, costs 1 stock of Infinity Gauge to activate)
QCD+P or K/412+P or K = Safety Roll (B, DB, D + P or K while being knocked down, to roll behind opponent)
Infinity Gem Activation = QCB+PP (Note: If you're holding multiple Gems, press Start to cycle through them)
To select alternate character colors, depending on their screen placement, hold up or down for 4 seconds on the character select screen for your chosen character. (ex. if you want Captain America's alt color, hold down for 4 seconds. If you want Magnetos alt color, hold up for 4 seconds)
