I found this cool thing that saves the textures, models, animations, sound effects, localization files, and fonts of Roblox games to your device, allowing you to dump assets.
It's called BloxDump.
https://github.com/EmK530/BloxDump
I used it, and got cool stuff like inventory icons,
...textures,
...renders,
...and a screenshot from the Super Mario Bros Super Show, which was apparently loaded into the cache at some point.
