I prefer to think of Pikachu running fast inside a pokeball instead of a hamster cage. With this remix you get to see pikachu ZOOM.
See the original Pikachu Motor Rotation Indicator by Ged Kerezis for the Pikachu and cap.
There is a version for the Pikachu running to the left like in my photo (counter-clockwise) and another version running to the right (clockwise).
I used HTPLA and a 0.4mm nozzle, no supports, and no issues.
The cap is likely press-fit. You just need one tiny drop of CA glue for putting the magnet on back of the pokeball.
The author remixed this model.