Do you think Metroid (Prime) is a hard series?

[nintendo_fanboy]

Alright, thanks for those impressions.

So far it seems that most people agree about the series being quite hard; some more, some less.

I was playing on normal difficulty in all the games of course. I played the first one quite far, I guess I had about 60 % when I quit the game (and I didn't do everything, so I assume I was not that far away from the end). I think I didn't even get stuck in Prime 1, but after The Wind Waker came out, I slowly stopped playing.

In Echoes I was stuck at the morph-ball boss, and seeing that some of you have mentioned that to be a hard fight I feel a little less bad about it now.

From what I've seen in Corruption though, it seems that it is really a bit easier than the other two. I had some trouble with Meta Ridley and Rudos or whatever his name was, but I have beaten two bosses in the first attempt already, one of them being the Golem. Apart from the boss fights, I haven't really faced something difficult yet.

What about the earlier games and Fusion? Are they as hard as Prime?