"Pitfall!" on Atari VCS held 255 entirely different game screens in a 4k cartridge :)
It isn't as if you could have a map editor and adjust the levels or the order of the levels, though you could run the generation procedure to find new levels to your liking.
Still an amazing game. In 4k it is astonishing.
[1]: https://youtu.be/tfAnxaWiSeE?list=PL2e4mYbwSTbbiX2uwspn0xiYb...
Quite a feat considering how horrifyingly difficult programming the 2600 was. Even the SDK was fairly barebones, basically a VT100 connected to a PDP-11 running RT8 and a 6502 assembler