I haven't seen many roblox figures with joints, so here. The tolerances might be too tight or too loose. PETG would probably work best for this, but PLA works too. However, it does get very loose after a day.
Note: My fried told me that if the joints are too loose, putting clay helps.
Changelog thing:
the day before the mario execution day in 2025 (March 30, 2025)
Added more sides to the rounded circle parts in the legs and scaled the head correctly (Edit: I'm wrong.)
a🅱ril 5th (April 5, 2025)
Actually scaled the head correctly and made the joints better.
The author marked this model as their own original creation.