Here is a list of combos i found on another site.
360: X=1, Y=2, A=3, B=4.
-EX: Enhanced Special
-B=Back, F=Forward, U=Up, D= Down, J=Jump, +=press together.
-Wall = Combo performed on the far side of either side of the level.
-Dash = Press forward twice.
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Baraka:
-8 Hits 38%: 2 2 2+1, Xray.
Cyrax:
-13 hits 40%: 2 1, EX Bomb, B+2, Dash, 2 1, Net, Dash, 3 3, Ragdoll, Throw
-9 Hits 28%: 3 3, Net, EXbomb, B+2, Anti-Air.
-8 Hits 33%: 3 3, Net, B+2, Xray.
-6 Hits 37%: Bomb Far, Bomb Close, Net, Xray.
Cyber Sub-Zero:
Ermac:
-11 Hits 56%: B+1, 1, 4, Force Lift, jump kick, Force Port, Xray.
-10 Hits 40%: B+1,1,4, force lift, jump kick, teleport(air), force push.
-9 Hits 34%: B+1, 2, F+1, Force Port, Force Lift, Force Push.
-9 Hits 40%: B+1, 1, 4, Force Lift dash in D+2 dash cancel to Force Push.
-8 Hits 30%: Jump Kick, Force Port, Force Lift, Dash in B+2, 1, Force Push
-6 Hits 24%: 2 2, Force Lift, Force Push.
Jade:
-10 Hits 34%: B+1, staff overhead, dash, B+2, dash, 1,2, dash, 4, 2x shadow kick.
Jax:
-6 Hits 28%: Ground Pound, J+2, Dash, 1, Dash, 1, 2, EX Dash Punch.
Kabal:
-9 Hits 28%: B+1 2 1, Nomad Dash, F+3, 2 Tornado Slam.
-8 Hits 25%: B+1 2 1, Nomad Dash, 1 1, EX Buzz Saw.
-7 Hits 40%: B+1 2 1, Xray.
Kitana:
-10 hits 40%: F+2 1, B+2, Fan Throw (air), Dash, F+2, Fan Throw, Dash (short), 2, EX Fan Throw (Midscreen) or Cutting Fan (Wall).
-8 hits 37%: J+4, Fan Throw (air), Dash, F+2, Fan Throw, F+2, EX Fan Throw (Midscreen) or Cutting Fan (Wall).
-6 Hits 32%: F+2,1, jump kick, fan toss(air), dash, B+2, Fan toss(air).
Kung Lao:
-13 hits 60%: J+4, D+4 (air), 2, Whirlwind Spin, J+4, D+4 (air), 2, Whirlwind Spin, Xray, F+3 (Wall).
-10 hits 37%: 1 1 2, Whirlwind Spin, 2, EX Hat Throw, 2 4 1+3 (2)
Liu Kang:
-16 hits 45%: jump punch, 2, 1, 3, F+2, 4, X-Ray, Bicycle kick
-12 hits 32%: jump punch, 2, 1, 3, F+2, 4, Bicycle kick (or EX Bicycle, 14 hits 35%)
Mileena:
-14 hits 40%: U+4, jump kick, teleport drop, sai blast (air), ball roll, 3, 4, X-Ray.
-12 hits 30%: B+1, 4, teleport drop, sai blast (air), ball roll, 3, 4, leaping neckbite.
Nightwolf:
6 hits 27%: F+3, 1, axe swing, 1, axe swing, shoulder.
Noob Saibot:
-14 Hits 38%: B+1 2 1 4, EX Shadow Upknee, B+1 2 1 4, EX Shadow Upknee, Shadow Upknee, EX Teleport Slam (Wall)
-11 Hits 39%: B+1 2 1 4, EX Shadow Upknee, 2 1 2, EX Shadow Upknee, Shadow Upknee, D+2. (Wall)
Raiden:
-11 Hits 40%: Jump Punch, 3, 3, 4, Teleport, Electrocute, 2, Vicinity Blast, Dash in, 3, 3, Electric Fly.
-10 Hits 49%: J+1, 3, 3, 4, Teleport, Electrocute, B+3, 1, Xray.
Reptile:
-15 Hits 49%: J+2, 3 2 1, Elbow Dash, J+2, Slow Force Ball, 3 1, Fast Force Ball, 3 2 1, EX Slide.
-10 Hits 44%: J, 1, 1, 2, 2, Fast Force Ball, 4, X-Ray
-8 Hits 38%: 1 2 2, Fast Force Ball, 3 2 1, EX Acid Spit.
Scorpion:
-7 Hits 27%: 2, 1+2, teleport, spear, F+2,1,4.
-4 Hits 20%: 1 1, Spear, Uppercut.
Shang Tsung:
-13 Hits 36%: Forward Jump+1, B+1, 2, 1, 4, EX Ground Skull, EX Up Skull, EX Fire Skull.
-7 Hits 27%: FJ+2, 2, 2, 1, EX Fire Skull.
Sheeva:
-16 hits 40%: Low Grab, 1 2 B+1, 2 1 2 F+1, Grab and Punch (Wall).
-14 hits 28%: 1 2 B+1, Dash, 1, Dash, 2 1 2, Grab and Punch
-5 hits 38%: Low Grab, B+2, 1+2, Fireball (Midscreen) or Air Grab (Wall) or Grab and Punch (Wall).
Sonya:
-8 Hits 33%: B+2,1,F+2, kartwheel, EX leg grab.
Stryker:
-16 Hits 39%: Forward Jump+1, B+1 2 2, Dash, 1 2, EX Gun Shot, Dash, 1 2, EX Gun Shot.
-15 Hits 37%: Forward Jump+1, B+1 2 2, EX Gun Shot, Dash, 1 1, EX Gun Shot, Dash, 3.
-13 Hits 41%: Forward Jump+1, B+1 2 2, Gun Shot, Dash, 1 2, EX Gun Shot, Dash, Uppercut.
-10 Hits 31%: B+1 2 2, EX Gun Shot, 1 1, EX Roll Toss.
-4 Hits 27%: Forward Jump+1, B+3, 2, Dash, Uppercut.
-8 Hits 28%: Forward Jump+2, B+2, F+2, Dash, 2 3 2.
Sub-Zero:
-12 Hits 53%: B+1 2, Iceball, J+2, Dash, 1, Dash, 1, Dash, 2 1 4, Xray.
-11 Hits 44%: 2, 2, Iceball, J+1, Dash, B+1, 2, 2, 1, Xray.
Quan Chi:
-9 Hits 61%: Skeletal Boost, B+2, 1, B+1, Trance, F+2, 1, Xray.
-6 hits 40%: J+2, Trance, J+2, Xray.
-Skeletal Boost, Sky Drop, 1 1 2, Trance, 2 1, Xray.