For Roblox Mad City , the Banshee is unlocked by completing the in-game rocket quest: collect tank fuel, add it to the rocket 100 times, activate the lever, then defeat the spawned chicken boss to earn the Banshee vehicle. The process is much faster with a group because multiple players can help fill the rocket.

Quick steps

  1. Go to the rocket area near the former construction/military base.
  2. Get the tank fuel.
  3. Bring the fuel back and add it to the rocket.
  4. Repeat until the counter reaches 100%.
  5. Pull the lever to launch the rocket.
  6. Defeat the chicken boss that appears.
  7. Claim the Banshee reward.

Helpful tips

  • A power/superhero-style movement ability makes the trip easier.
  • More players means faster fuel delivery.
  • The boss fight can be messy, so avoid its eggs and stay mobile.

Note

There are also other Roblox games with “Banshee” content, but the guide above matches the most likely “roblox progect” result from the search, which points to Mad City’s Banshee vehicle.

TL;DR: In Mad City, keep delivering fuel to the rocket until it hits 100%, launch it, beat the chicken boss, and the Banshee is yours.