I went looking for a copy of Forza 2 on the weekend and the cheapest version I could find was actually a second hand 2 for 1 pack that included Forza 2 and Viva! I honestly never expected to play Viva Pinata at all, although after getting annoyed at Forza, I loaded it up.
Lets just say that what I thought would be a quick 10min play session turned out to be 5 and half hours straight. I'm really mad at myself for overlooking this title for so long! It's now one of my favourite games in my collection. I'm thinking of going out this weekend and buying the game in its original box and picking up a copy of Part Animals.