Rupee Wraith

The Rupee Wraith is an undead enemy featured in Four Swords. If Link comes into contact with it, he will start losing Rupees. Touching one of the other Links will pass the Rupee Wraith to them. In the Four Swords Anniversary Edition, you can dispatch of a Rupee Wraith quickly on single player by switching control to any Link not being attacked.

Only one Rupee Wraith appears in The Minish Cap, the one who inhaunts Gregal. In order to save Gregal's life, Link must suck it into the Gust Jar; the ghost constantly moves about, making it tough to ensnare.