I think the sounds are just the normal Wii .brsar used in most Wii Games.
Here's a BMS script for the game's GFA files if you want it, as Yoshi's Woolly World, Wario Land: Shake It, and Kirby's Epic Yarn use the same type of format:
http://aluigi.altervista.org/papers/bms/...c_yarn.bms
Here's a BMS script for the game's GFA files if you want it, as Yoshi's Woolly World, Wario Land: Shake It, and Kirby's Epic Yarn use the same type of format:
http://aluigi.altervista.org/papers/bms/...c_yarn.bms