To be fair, he's still missing memories from his earlier plays! And as we've seen, playing too many tapes has an effect on people (even npcs if we're theorising that Bada IS one). So maybe this initial "memory loss" is more of a way for the author to introduce the concept of npc's having multiple tapes, what Bada reverts to when he has zero tapes etc. I'd argue there couldn't be a smarter revelation cause we now know
1. How Bada looks as an NPC
2. Npcs also bleed from multiple tapes
3. Npcs (aside from Bada) can be interacted with, change behaviour etc

A bit anticlimactic, isn't it?