Can't Find A Video Game! HELP

So, I've been struggling trying to find a video game and even AI isn't much help. so heres the breakdown

• Platform: Likely GameCube-era, but maybe PS2/Xbox as well
• Art style: Cartoonish, not realistic
• Player character: Some sort of rabbit (or rabbit-like creature)
• Setting: Starts in a Wild West/frontier area
• Scene: You talk to an older man/prospector who sings a parody of “I’ve Been Working on the Railroad” with the line about “now I’m working in the gold mine, and I get much better pay.”

**I only remember collecting some coins. I believe the character was a rabbit with a funny voice. The style of the game is similar to the game "The Western Outback Mining Town" and the style of it definitely used the "**3D Cartoon Western Pack". I only remember the one scene where you talk to an old miner guy and he sings the song "I've been working on the railroad all the doo dah day, but now I'm working in the gold mine and I get much better pay".