To start with, if you're watching this alternate OVA, you really should have already at least started the game. It outright removes the entire elevator segment, rushes through character interactions, and ends on a cliffhanger. I imagine ZE fans are just glad the OVA exists, rather than objectively judging it for what it is. Still, it leaves me with hope for a future where 999 and VLR are given Anime adaptations. Oh well... Also there is a huge inconsistency with a gigantic spoiler from the game that is in the OVA, but I can't really fault them too much, as it would be rather difficult to conveythat. Still if the game is adapted, I hope the whole thing is in first person and done correctly.