Feel the Pain is a very unique song, structure wise. It starts of slow, then speeds up, then becomes slow again, speeds up again, continues with the fast speed as the vocalist sings something other than "Feel the pain of everyyyooonee...", goes back to slow, jump to the fast singing part again, Guitar solo with fast, then end. Now with that in mind, let's get on to the actual review.
The slow parts are not very interesting, with a simple drum beat with the variation of the snare being hit only every other beat and bass pedals being thrown in whenever. Not exactly interesting, but do be aware, as the extra bass pedals can easily break a combo if you're not paying attention.
But once it gets to the fast part and guitar solo, the song is probably one of more fun songs from RB2. You start using the pedal, crash, and snare much more. Plus, small rolls are thrown in every now and again, keeping you moving across the set trying to hit the rolls and the blue notes.
The singing fast parts are even more chaotic. The bass pedals are now also in between notes as well as played with others and the snare appears to be getting more off-hand action and the fills have decreased in appearances, but make up for being longer and trickier to nail.
All in all, minus the slower parts, this song is probably one of the best not-so-hard-but-still-fun songs from Rock Band 2. An absolute newbie will get overwhelmed, but if you've got some experience under your belt, this song will probably be one of most fun songs from Rock Band 2. Even if you are a veteran who eats Beast and the Harlot for breakfast, you'll still find this song loads of fun to play with its variety, unique beats, and how it forces you to go all over your entire drumkit.