Using a rust remover will either break the armor (common) or yield one of the following:
- Brass Armor (common)
- Plate Armor (uncommon)
- Knight Armor (uncommon)
- Crown Armor (semi-rare)
- Golden Armor (very rare)
There is high chance that the armor will break. Use a rust remover to un-rust the armor. This Rusty Armor gives the best chance of getting a rare item. It was initially thought that Magic Plate Armors or Dragon Scale Mails were also available by unrusting the armor, but this has proven to be false.
Getting a Golden Armor by successfully polishing this item is one of the two requirements to get the Lucky Devil achievement.
In a small patch the weight was changed from 100.00 oz to 120.00 oz on November 10, 2009.
On June 12, 2019, its name was changed from Rusty Armor to the current one, and the sprite was also updated.