If you want a portable version for offline study or archiving, here is the ethical, functional method. Note: This does not allow you to re-upload the game to Roblox; it is for personal use only.
If you love Robot 64 and want to explore modding or offline play, here are legal and safe routes: robot 64 uncopylocked portable
Released in 2018, Robot 64 places players in a voxel-based world where they collect ice cream ingredients across various themed levels. Unlike many Roblox games that rely on multiplayer interaction or microtransactions, Robot 64 is a single-player, story-driven experience. It is widely regarded as one of the most polished platformers on the Roblox platform. If you want a portable version for offline
Instead of hunting for a dangerous "uncopylocked portable" file, consider these official alternatives: Unlike many Roblox games that rely on multiplayer