Simplify the following text for a Grade 6 native English-speaking person.
Original: In Super Mario 64 and the English version of Mario Kart 64 , Peach was voiced by Leslie Swan , a localization manager for Nintendo of America . Swan voiced Peach again for the release of Super Mario 64 DS in 2004 and in Super Paper Mario in 2007 .
Simplified: In Super Mario 64 , her name became Princess Peach Toadstool .