endrift
commented
5 years ago Patches against the base ROMs are located here: https://github.com/openai/retro/tree/master/retro/data/contrib
They're in XDelta format so you'll need a patching utility to generate them from the generic Sonic ROMs.
I would like to expand the number of levels the agent I am training to play sonic has to test on while allowing for comparisons to be drawn to the results of the contest, if I perhaps discover some method that beats a previously unbeatable level. Have you made available the test levels used in the competition for download?