Borderlands: Game of the Year Edition
81 Achievements
64-76h
Duelinator
Won a duel without taking damage
22.6%
How to unlock the Duelinator achievement in Borderlands: Game of the Year Edition - Definitive Guide
Start the game in splitscreen and as soon as you are able to move have both characters punch each, this will start a duel, have your main account kill your spare account without taking any damage and the achievement will pop.
You will also get the below achievement if you have not won a duel already
Gt: J The Altruist
You start duels by meleeing each other with
Just win the duel without taking any damage (so just don't shoot yourself with the other person) and you'll get the achievement!
Walk up to your co-op partner and melee them to propose a duel, and have them melee you back to accept. If you're boosting this, ask your friend not to attack you back and the trophy will unlock. If this is your first duel win, you will also unlock the trophy below:
This can be unlocked with a second account and controller. A silver account will suffice.
This achievement can and should be unlocked while going for "Duel-icious". When attempting that achievement, so long as your second account or friend stands still and lets you kill them, you will take no damage and unlock this achievement along with "Duel-icious".
Once the duel has started, to win it you have to equip your most powerful weapon and kill the other player or by leaving the "duel bubble". If you can go up against a player who is at a lower level than you, then so much the better as they will die faster. You can get this at the same time as Duel-icious. If you use the same method as Can't We Get BEYOND Thunderdome? then you can get both trophies very quickly.