Force and Motion, Stargate, Simon Says, Paperboy, Impossible Mission 2, Sneakers, Pacman, Donkey Kong, Frogger...oh, the good ol' Apple II! All of these titles and many more are available on your browser in the Apple II Library: The 4am Collection at Archive.org. There are hundreds of Apple II programs available, and all of them run right in your browser, no downloading required. Here's a screenshot from Muppetville.
Check It Out: Apple II Programs in Your Browser in The 4am Collection