Most "crash" scripts work by spamming MainEvent with specific arguments like "Block" or "Stomp" to overwhelm the server's processing queue.
Some variants spawn large amounts of parts or manipulate tool physics to create frame-rate drops for everyone in the server. (2022 Pastebin) The *BEST* Da Hood Crash Script...
The script you're looking for, often titled is a widely circulated Lua script designed to exploit vulnerabilities in the Roblox Da Hood engine to force server-side crashes. Most "crash" scripts work by spamming MainEvent with
Many versions on Pastebin include a Fluxus or Synapse X compatible GUI for toggling the crash. (2022 Pastebin) The *BEST* Da Hood Crash Script...