Favourite Nintendo game? ... Let's see...
I like Tales of Symphonia, but that one wasn't really developed by Nintendo.... Same for Chrono Trigger...
I think my only two favourite games that matter for this thread are The Legend of Zelda: Majora's Mask, and Paper Mario: The Thousand-Year Door.
Wait a minute, Paper Mario was developed by Intelligent Systems afaik... Ok... then just Majora's Mask oO
What a development chaos...