Oh no! Kokoro's lost all 66 of her masks and needs to run through Gensokyo in order to recover them!
Run across generated platforms in order to collect all of Kokoro's missing masks. Every platform segment contains one mask, so in order to collect them all a bit of exploration might be needed.

Walfas is still relevant, right?

If you don't want to download _everything_ then this could speed things up
git clone https://github.com/morzack/kokoros-mask-run.git && pip install --user pygame -U && python kokoros-mask-run/main.py

Update 12:16 ETC 24-Jun-19: realized cx_freeze was adding _every_ python module to the build path, recompiled without that happening.