[P.P.A.]

I love it. It's fantastic, yet very hard. But surprisingly, it's not frustrating at all. Even if you die at one point for the 10th time, you're still motivated to try it again and even have fun. And with every try you get a bit further. (Haven't gone further than the prologue of Chapter 4 yet.)
The music is awesome too. Now I've gotta look for something to turn my TV...

[Crowbar]

Fuck, I've wanted this game for ages but never get around to buying it. I haven't played too many vertical shooters but those I have I've liked very much (a while ago I got really into this phenomenal freeware one called Samidare...anybody here played that?)

[magnum12]

It took me years to find that game. It was worth the effort though.

[P.P.A.]

I've heard it's also gonna be released on Xbox Live.