Exactly what CAN you do with Flash? How about build a Mac SE running System 7? Troy Angrignon (ARCHIVE) Read more posts by this author. Troy Angrignon (ARCHIVE) 18 May 2004 • 1 min read This insanely great little website shows a Flash version of a Mac SE running System 7, complete with startup-screen, 4 games, Mac Write, and Mac Draw. WOW is all I have to say. It’s amazing.