19XXTE 0.9G works perfectly when injected into the Kirby 64 Virtual Console on Wii U (using the existing UNALJ0.354 config by changing the region within the ROM). However, a general issue this emulator has with Super Smash Bros. is that character models never change colours (eg. invulnerability flashing). Unfortunately, Hid-to-VPAD's Gamecube controller functionality doesn't work very well with this as of now (notably, full right / up on the analogue stick register as full left / down respectively, and the Z button's functionality is hardcoded as a button modifier).
I will also test the next version in this emulator.