Kenshi's is the only one that should even be called a hara kiri.

Good: Fatality: I like Havik's Fatality when he rips your Leg off and knocks your Head off with your very own Leg.
Hara Kiri: I like Baraka's Self Decapatation simple to the point and pretty cool looking.
Bad: Fatality: Have to agree with a lot of you Bo Rai Cho's Gas Fatality is horrible enough said.
Hara Kiri: Liu Kang's Green shit swirls around him and he falls to pieces what the hell is that...?
Ugly: Fatality: Sub-Zero Half Freeze Kick, didn't scare, or gross me out i just think its harsh that after you shatter someones legs to pieces to stomp the chest till their head pops off.
Hara Kiri: Tanya's legs bone inserted to eye sockets was pretty gross.

Fatalitys:
Good:SPOILER.Sub-Zero'sJust looked so freaking awesome its like his old shcool head rip fatality but with some awesome twists.
He frezees u first rips ure head out slides back and throws ure heard rite to u and boom!and ure body goes flying into pieaces.
Bad: Bo'Rai'Chos.There just stupid bo'rai'cho is a joke charchter just like Mokap.The MK team could ove done a better job then this.Even MKDA's Fatality of Bo'Rai'Cho was better then this.I hope they take him out for the next MK.Im not even going to mention his Fatalitysit would just be a waste of my time.
Ugly:SPOILER.He eats both of ure arms then starts vomiting blood and laughs that freaked me out.But it still a good Fatality