https://www.qmtpro.com/~nes/nintendulator/

January 2, 2019
As is bound to happen when I decide to make an unplanned release (in response to the last release having been nine years ago), I managed to introduce a rather unfortunate bug in a last-minute change - all savestates made with the Arkanoid paddle connected to the Famicom Expansion Port would be corrupted. The release has been updated to incorporate a fix for this.