Can just grab them out of the cache once they've been downloaded, wherever they're stored.
You must have one somewhere, you're chatting on HN with a modern SSL certificate.
Some games won't work if you try to play them outside of Flashpoint though: https://flashpointarchive.org/datahub/How_Flashpoint_Works
Pizza City: https://flashpointproject.github.io/flashpoint-database/sear...
Cookie Party: https://flashpointproject.github.io/flashpoint-database/sear...
I learned a lot making these games while studying compsci. The platformer had a custom physics engine and I recall the pizza city open world was challenging to optimize for me at the time. Super fun to work on and appreciated the opportunity to work on these for PixelJam. These games were for comedy network and adult swim so in the same vein.
https://flashpointarchive.org/