Simplify the following text for a Grade 9 native English-speaking person.
Original: In Super Mario Land 2 : 6 Golden Coins , which takes place immediately after the original Super Mario Land , Mario 's evil counterpart Wario has put an evil spell over Mario Land while Mario was away in Sarasaland , renaming the area Wario Land .
Simplified: Super Mario Land 2 : 6 Golden Coins for the Game Boy saw the arrival of Wario , Mario 's counterpart .