Alma is easy.

As for the guy who said FF VIII, if you were referring to ultimecia's final form at max level then yeah, pretty effing hard. Millions of HP made me cry.

OP still takes the cake.

Hmmm. I'm not sure.

They both require memorization and good reflexes. I think Bullet Hells are better though because of the sheer amount of precision needed.

Psycho Mantis

Memorization doesn't do nearly as much in God Hand - and your reflexes have to be near-instant to beat this particular boss. The player in this video is so good that nothing can be learned from him (becauseh e is too fast) - it's probably the most impressive gaming performance I've ever seen.

Wow.... thats just insane :o

So it's basically a random string of attacks?

I can't deny that that was pretty freaking sweet.

Most impressive gaming performance though?

Yeah - there's no particular pattern to the order of the boss's attacks. It's true of most of the harder bosses in this game, including Devil Hand, but especially Evil Gene.

And yeah. Maybe I just haven't seen enough, or I'm placing too much emphasis on reflexes here.

Well, all video games are pretty much reflexes and precision.

God Hand - Godly reflexes

Mushihimesama - Godly precision

Which is more impressive?

Mildred Avalon of Arcana Heart.

There's too much luck in the fight with her.  It ends up being a matter of praying that the computer won't use the attacks that you can't dodge/counter/avoid and that rip off 40% of your HP.