Roblox has a fragmented architecture. A script that teleports a player in Brookhaven uses different object references than one in Murder Mystery 2 . However, skilled exploit developers create "semi-universal" scripts using remote event spamming or character manipulation (e.g., modifying HumanoidRootPart ). These work on roughly 70% of games but will fail in heavily guarded experiences.
The short answer is
Stay safe. Troll responsibly (without scripts). And remember: the best troll is one that confuses, not destroys. Have you encountered a "portable" script that actually worked? It was likely a targeted exploit patched within 48 hours. For current, ethical Roblox scripting, explore the official Luau documentation instead. universal troll script roblox portable