Nikki's Smash Ball not rendered correctly

[zrksyd]

The Smash Ball from the Assist Trophy Nikki (found in assist/nikkiillust3/) does not render correctly, although Nikki's other drawings seem to be just fine (the dinosaur in the screenshot is assist/nikkiillust1/ with the same material). I included the vanilla files for you to investigate.

nikkiillust3.zip