It only runs older NSW software (and not USA platform or any other region), and doesn't even do that properly, the program code dates from 2004 (but was leaked around 2008, not "a year or two" ago) and has been heavily hacked over time. Try running a newer game like Deep Freeze for example.
The system base (aka BIOS) which is compiled as part of the EXE (which is not a ROM image but actual x86/Win32 code) is version 12011401 which is too old to run practically anything newer than 2006. The EXE patches everything out from the comms board to the hopper (even the coin input is a hack, note that coins still work even when the door is open - on a real machine they would fall through) and also bypasses the self tests by running the games directly without the POST, so it can't even be relied on for testing good dumps - at least that can be done in MAME if nothing else for now.