Wario Land: Ziv Kingdom 2

Wario Land: Ziv Kingdom 2 is a game in the Wario series. More specifically the Wario Series.

Plot:
Wario and Friscos head back to the Ziv Kingdom in search of an ancient golden sword guarded by a malicious dragon. Once they defeat the dragon, Wario is double crossed by Friscos who escapes in a helicopter with the sword, leaving Wario cheated yet again. It is revealed after the credits that Mario is in the helicopter, and was the one who convinced Friscos to betray Wario.