TR Anniversary - TR Underworld Animations Showcase
Thanks to further research of the animation format (also thanks to my friend Che), I managed to backport Underworld animations in Anniversary. The result is pretty cool even though the moveset looks kinda rough since Anniversary has none of the traversal systems Underworld is using.
Still an amazing achievement regardless.
I might try doing the inverse process (Anniversary animations in Underworld) sometime in the future, but it's currently impossible since my Underworld mesh tools aren't capable of writing a custom skeleton, which is necessary for this to work properly.