Item from EarthBound by Shigesato Itoi / Nintendo
An absurdly rare weapon with a 1-in-128 drop chance from Starman Supers — the only equipment that meaningfully improves Poo's offense, and the source of countless hours of grinding.
The Sword of Kings is a weapon only Poo can equip, and it is infamous. It drops from Starman Supers in the Stonehenge Base with a 1-in-128 chance — roughly 0.78%. Poo can equip yo-yos and slingshots, but they lower his accuracy. The Sword of Kings is his only real weapon upgrade, boosting his Offense by 30. Players have spent hours grinding the Stonehenge Base for this single drop. It is not strictly necessary — Poo's PSI is his primary offense — but its rarity has made it a rite of passage for completionists. The Stonehenge Base is the only place Starman Supers appear, so miss it and it's gone forever.
A regal blade befitting a prince. Despite the name, Poo's attack command remains 'Bash' when it's equipped, because apparently you bash with a sword in Eagleland.