Colossus

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[edit] X-Men: Children of the Atom

(side body press)              In air, HP
(tsukami age)                  d + PP on a downed opponent
Giant Swing                    qcf + P, rotate 360 repeatedly  (air)
Power Tackle (Forward)         qcf + LK  (air)
Power Tackle (Diagonal)        qcf + HK  (air)
Kick Combination               LP, MK, HP 
xSuper Armor                   qcb + PP
*Super Dive                    qcf + PP, d + P / K to dive early  (air)

[edit] Marvel vs. Capcom 2

(side body press)              In air, f + HP
Giant Swing                    qcf + P, rotate 360 repeatedly  (air)
Power Tackle (Forward)         qcf + LK  (air)
Power Tackle (Diagonal)        qcf + HK  (air)
*Super Dive                    qcf + PP, d + P / K to dive early  (air)
*Super Armor                   qcb + PP