The TurboFile by ASCII Corporation is an off-cartridge storage device developed at a time when the Famicom Disk System was not yet released, and battery backup cartridges were still too expensive to produce. It could only save one game at a time, and there way no way to know which game it was if you owned several that were compatible, but that didn't stop ASCII from making several variations -- not only for the Famicom, but other consoles as well. We didn't have one when we did our review of the Famicom Data Recorder, but supposedly it is compatible with Castle Excellent. Is that true? We find out!