'Stachios are required to complete the game, since they are used to give Waluigi the Mega Mustache.
'Stachios resemble coins with a picture of a mustache on them. The regular-sized coins (with a likeness of Mario's mustache) are worth 10 'Stachios, while the Huge Coins (with a likeness of Wario's mustache) are worth 100.
'Stachios come from three main sources:
- 'Stachios are earned after navigating through a puzzle-like part of a stage.
- Defeated bosses drop a few Big 'Stachios and several Regular 'Stachios. The number of Big 'Stachios is determined by how difficult the boss was and/or how long it took to kill them.
- 'Stachios are downloadable via wi-fi connection, at 50 cents per 'Stachio coin(regular) and 1 dollar per Big 'Stachio.