Simplify the following text for a Grade 6 native English-speaking person.
Original: During localization of the game for American audiences , Nintendo of America 's warehouse landlord Mario Segale confronted its then-president Minoru Arakawa , demanding back rent . Following a heated argument in which the Nintendo employees eventually convinced Segale he would be paid , they opted to name the character in the game Mario after him .
Simplified: Mario Segale was the owner of the land where Nintendo of America 's office was built .