Update: I was unfortunately not aware of Shamus Young's severe criticism of Fallout 3 available here to link in the original piece and I regret that. It dovetails rather nicely with what I've written and it's much better executed than my piece. I strongly recommend anyone...
What the hell?!?! I bought this game because when it came out I too was a idiodic little drone of the yellow rat. And sure I played it a lot untill the little micropone died and by died I mean the plastic broke when I threw it into a wall. And the 90$ price tag [as much as an N64, 1 buck now] really screwed it. Well read on.
Gameplay: Poor, having to use that crappy mic would make you mad quick. If it worked better it would of been bearable but Pikachus lack of hearing messid it up bad.
Controls: Poor, the fact that it is so hard to move some places as well as the mic really screwed it bad.
Graphics: Good, not incredible but it is nice to see the little critters in 3D. But Pikachu is the only good looking one in the animation.
Replayability: Hell no, if you like talking to pikachu buy it and seeing it get mad is enough joy.
Overall: A game that had a chance and a hefty price tag taken down by poor controls and a bad microphone.
Rent or Buy: well it is a nuck now so go ahead you might get a laugh.