Captain: Smushed

 is a challenge in Risk of Rain 2. It is completed as Captain by killing the final boss using an Orbital Supply Beacon.

Tips

 * It is best not to use Runald’s Band or Kjaro’s Band as there may be a proc therefore disallowing you to get the achievement.
 * Play multiplayer and have the other player be Artificer so that Artificer can freeze Mithrix and captain can hit Mithrix with the beacons.