Is there a cut-off point in the story where the Matthias' first event stops triggering?
I did a playthrough all the way up to just before the final boss, where I wanted to do his route right before finishing off the game, but that was a mistake, his event will not trigger (since he was apparently aiming for the Demon Lord too).
However, porting that save to NG+ bugged it out and I couldn't trigger the event on a NG+ run despite meeting the conditions, so I don't know if it was just a bug in the first place or whatever.
Did another playthrough on a new save (new game not NG+) and I was still able to trigger his event right before grabbing the Stellar Ruby, not sure how far you can take the story before it stops his event if that's even a thing.
I also don't know how to get better guns from that one guy, the quest ends at Peacemaker IV and I don't how to take it further.
The teddy bear showing up on new runs is a 1.0.5 bug, but it's seemingly purely visual, since I noticed it does not effect the bar until you actually pick up the bear from the forest dungeon.
Played all the way to one of the Matthias endings, very hot.
I'm looking forward to playing more once they've ironed out most of the bugs, the current version (1.0.5) is still not in a great state.