You kind of expect them to anyway these days. The Proto Mega Ulorder itself doesn't have sounds, it's just the Eyecon cycling through a set of sounds.
Yeah, based on the promotion in PB website, the Proto Megauloader is literally just a single Eyecon storage on your wrist that push the Eyecon's button for you, since like 99% of the voices came from the Eyecon anyway. There's also no indication that it detects anything else besides the provided two Ganma Eyecons.
It basically manages to be even worse than the actual Megauloader, makes sense considering it's a Proto, but still........ :sweat:
Even the form change Ganma Eyecon is disappointing, having sound only for Seiryuto, Machinegun, and Knife, even though nothing stop them from putting a sound for all currently existing Ganma.
I'm very sure they will suffer a huge loss if this thing was a retail item instead of PB exclusive. Even collectors, at least the ones I know, think twice about buying this thing. So them making this a PB exclusive is actually the right choice, since they can make their loss pretty much zero by knowing exactly how much to make, based on the number of order for this junk.