I havnt got the game but got the descriptions from mkf forum.
If you go to mkforces.net and down the bottom of menu they have death cinema, you can view fatalitys there, not many atm but more soon.
Jade's are cool. We've all seen the one where she spears your head. Her second fatality also involves her spear. She pulls it, shows it off, and she runs at th opponent and slices them. (almost like what the girl in Underworld does to Viktor at the end, but Jade runs by quickly) Opponent grunts, and stands still. THen you see that opponent has been cut in half as the top torso slids off slowly.
Mileena's second fatality is pretty cool. She tosses her sais up. They fly up real high. As they fall back down, Mileena kicks them one by one and they fly at opponent. (just like in Blade when he kicks the syringe at the bad guy at the end)
Ermac's second fatality is cool. He raises oponnent off the ground, and crunches them in a ball. He spreads his hands, stretching opponent, and the tear in half.
His first one is the tele slam.
Kabal kicks opponent up in the sky. As the fall he quickly pulls out his hooksword and slices them in half.
His Hara-Kiri is funny. He pulls out his hook sword and jams it into his face.
Kenshi kneels to the floor and pulls out his sword. He then slices his stomach up diagnally. It's cool.
Scorpion does indeed have the head rip, but it's way cooler. He jams his fingers into opponent's throat, and pulls out the vocal cord along with the head, and hold it up high. His hara kiri he kneels down and snaps his neck.
Tanya Fatal 1: SHe pulls out her weapons and slices opponent up, but no body parts come off. SHe then turns around and stabs the sword on opponent. Trust me, it looks way better than it reads. It's tight. Opponent falls on their knees and just sit there bleeding. It's tight.
Tanya Fatal 2: She jams her hands on each leg of opponent and pulls out a bone from each leg. She then jams them on their throat. It's nasty, gruesome, and Fucking tight.
Tanya Hara-Kiri: Just like the 2nd fatal, but jams her bones on her eyes. Now tha is a painful suicide. It's cool cuz you can actually see holes on her legs.
Havik Fatal 1: He grabs opponent's arm, and eats it. He runs to the other side, and eats the other arm. He then starts puking blood, and arm bones.
Nasty and gory, and kICK ASS.
Havik Fatal 2: It's the leg rip and knock head off. The one Mileena had on early trailers. It actually fits him. It's a nice fatality.
Hara Kiri: Well we all know he pulls his head off, and yes he does fall down. It looks freaky.
Ashrah has a voodoo doll and stabs it and they persons arms fall off and shit comes out there stomach. Her second is she makes magic go around the person and they melt. Her hara kiri she spins and body parts fly apart.
Li Mei's first fatality is the one we've all seen, but just in the first part. My bro said she goes's crazy, punching the hell out of opponent, until they explode. BRUTALITY.
Her 2nd she kicks opponent's head off. The head flies up high. Once it comes down, she kicks the head hard at headless opponent, and the blow up.
Her Hari Kiri- She toses her weapon up, and pokes her head out, so when it falls, it decapitates her.
Hotoru's 2nd fatality: He breaks your leg, and you fall to your knees. Hotoru twists your neck around three times. It's badass cuz the sound effects sound nasty.
Hotoru's Hara-Kiri is different. He grabs his head, and pulls it upwards, pulling it off along with the spinal cord. Cool huh?
Kira's fatality is she locks the persons feet down with her weaopons and rips there torso off, her second SUCKS - worse in the game - she twirls and slices them a bit, then kicks them and they fly off in bits. Her Hara-Kiri: She pulls out her two blades and jams it into her stomach.
KABAL: He uppercuts them, and slices them in half (horizontal slice, not vertical) as they fall. 2nd He runs by them and makes them spin, and as they are spinning he places the hookswords on top of their heads like in a gramophone. Then he lowers the hooksword making a vertical slice that makes the spinning pieces of the body go flying everywhere. Hara kiri is he jams hooksword in hishead.

I havnt got the game but got the descriptions from mkf forum.
If you go to mkforces.net and down the bottom of menu they have death cinema, you can view fatalitys there, not many atm but more soon.
Jade's are cool. We've all seen the one where she spears your head. Her second fatality also involves her spear. She pulls it, shows it off, and she runs at th opponent and slices them. (almost like what the girl in Underworld does to Viktor at the end, but Jade runs by quickly) Opponent grunts, and stands still. THen you see that opponent has been cut in half as the top torso slids off slowly.
Mileena's second fatality is pretty cool. She tosses her sais up. They fly up real high. As they fall back down, Mileena kicks them one by one and they fly at opponent. (just like in Blade when he kicks the syringe at the bad guy at the end)
Ermac's second fatality is cool. He raises oponnent off the ground, and crunches them in a ball. He spreads his hands, stretching opponent, and the tear in half.
His first one is the tele slam.
Kabal kicks opponent up in the sky. As the fall he quickly pulls out his hooksword and slices them in half.
His Hara-Kiri is funny. He pulls out his hook sword and jams it into his face.
Kenshi kneels to the floor and pulls out his sword. He then slices his stomach up diagnally. It's cool.
Scorpion does indeed have the head rip, but it's way cooler. He jams his fingers into opponent's throat, and pulls out the vocal cord along with the head, and hold it up high. His hara kiri he kneels down and snaps his neck.
Tanya Fatal 1: SHe pulls out her weapons and slices opponent up, but no body parts come off. SHe then turns around and stabs the sword on opponent. Trust me, it looks way better than it reads. It's tight. Opponent falls on their knees and just sit there bleeding. It's tight.
Tanya Fatal 2: She jams her hands on each leg of opponent and pulls out a bone from each leg. She then jams them on their throat. It's nasty, gruesome, and Fucking tight.
Tanya Hara-Kiri: Just like the 2nd fatal, but jams her bones on her eyes. Now tha is a painful suicide. It's cool cuz you can actually see holes on her legs.
Havik Fatal 1: He grabs opponent's arm, and eats it. He runs to the other side, and eats the other arm. He then starts puking blood, and arm bones.
Nasty and gory, and kICK ASS.
Havik Fatal 2: It's the leg rip and knock head off. The one Mileena had on early trailers. It actually fits him. It's a nice fatality.
Hara Kiri: Well we all know he pulls his head off, and yes he does fall down. It looks freaky.
Ashrah has a voodoo doll and stabs it and they persons arms fall off and shit comes out there stomach. Her second is she makes magic go around the person and they melt. Her hara kiri she spins and body parts fly apart.
Li Mei's first fatality is the one we've all seen, but just in the first part. My bro said she goes's crazy, punching the hell out of opponent, until they explode. BRUTALITY.
Her 2nd she kicks opponent's head off. The head flies up high. Once it comes down, she kicks the head hard at headless opponent, and the blow up.
Her Hari Kiri- She toses her weapon up, and pokes her head out, so when it falls, it decapitates her.
Hotoru's 2nd fatality: He breaks your leg, and you fall to your knees. Hotoru twists your neck around three times. It's badass cuz the sound effects sound nasty.
Hotoru's Hara-Kiri is different. He grabs his head, and pulls it upwards, pulling it off along with the spinal cord. Cool huh?
Kira's fatality is she locks the persons feet down with her weaopons and rips there torso off, her second SUCKS - worse in the game - she twirls and slices them a bit, then kicks them and they fly off in bits. Her Hara-Kiri: She pulls out her two blades and jams it into her stomach.
KABAL: He uppercuts them, and slices them in half (horizontal slice, not vertical) as they fall. 2nd He runs by them and makes them spin, and as they are spinning he places the hookswords on top of their heads like in a gramophone. Then he lowers the hooksword making a vertical slice that makes the spinning pieces of the body go flying everywhere. Hara kiri is he jams hooksword in hishead.

why did they give scorp a head rip?
I think it looks crap.
why couldn't he have 'toasty'?