Henry Stickmin gets the Biggoron's Sword in the Toppat Airship guide (Biggol sword Achievement)

How to get the Biggoron&sword in the Toppat Airship - The Biggol Sword (named Biggoron&Sword in the original release) is a valuable sword that the Toppat Clan has in its possession during Infiltrating the Airship. As a sidequest during the game, Henry can try to find this sword, which is hidden in a chest in a secret room in the airship. If this task is completed the player gets a medal. Infiltrating the Airship (stylized as Infiltrating the AIRSHIP in the title) is the fourth game in the Henry Stickmin series, created by PuffballsUnited. It is the sequel to Stealing the Diamond, and takes place before Fleeing the Complex, and is named as Episode 3 of the Henry Stickmin story. The game has four different endings and one fake ending. Airship introduces the Government and the Toppat Clan-- two opposing factions that would play major roles in Fleeing the Complex and Completing the Mission. Alongside the factions, Charles Calvin, Reginald Copperbottom, and the Right Hand Man make their first appearances in Airship; all would go on to become staple characters in the series. Source: #achievement