this is hard to say but i'd go with MK because they are more badass. second you turn your back on a MK FIGHTER you'll have your spine ripped out your back, burned alive or uppercutted off a bridge to a spike pit.
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Unfortunately I don't think uppercuts are as effective on Naruto characters as they are in MK.
uppercuts? what about a acid shot to the face? a bolt of lightning from the sky? a 4 armed giant 650 lbs monster stomping on your torso or a spear to the heart?
Sadly those kind of pale in comparison to giant meteors, crushing mountains, inextinguishable black flames, tailed beasts, etc.
Not saying MK isn't awesome, but its comparing apples and oranges.
Lol. +rep
Lol sorry just did for sure this time.lol i didnt even touch the tip of the ice berg my friend. we got sorcerors who can bring back the dead just like edo tensi, Gods, people who can teleport through dimensions, people who can turn into giant Beasts themselves..
but your right its very hard to compare the 2.
you say +rep but did not rep..