Watching Jerma's Pikmin 2 stream. At 4:59:20, this big rock snail guy's stomping sound effect sounds just like what I imagine high quality clips of Bowser's Mario 64 stomping would sound like. Also, the brass samples sound awfully similar to WariOwOrld's brass.
Here's one interesting thing I learned from working on it. So, I'd forgotten to add the harmony for the Lead (kind of understandable, since it's so quiet). Listening back to the audio also had me realize I'd used the wrong instrument for it to begin with, when I was implementing actual Wario patches for the sound. So, I went digging back through WarioWare Twisted's patches a second time, intending to add them to the makeshift sf2 for Inc. I created (for occasions like this, where using one sf2 at a time is optimal).
Apparently, the lead instrument (the one that's combined with the xylophone) is literally the Clarinet from Ocarina of Time.