Amnesia ULJM05931

[Bigpet]

It's a log file that the emulator creates for debugging purposes (since developers don't have every game themselves). So that people can see which notable functions of the emulator it uses and whether it generates some noteworthy warnings. This can also sometimes be useful for regression testing, so if the game doesn't work the same in future you can look at the difference in the logs to find out what changed.