There is a bug with the current build of the game, I'm really sorry. What happens is recently-ish the item pickup effect was updated to a new animation/effect, and the miko generates healing items after purification that are on the old system which crash the game immediately.

The flashback scene and the repair scene are queued to play sometimes after a gameover, but only once, so they can't be seen again without of your save data so that it opens with the game version number again. HOWEVER for that one scene in particular, it's attached to the debug command on numpad 7; if you go to the debug settings and turn on the debug numkeys they all have various effects, with 7 being playing that scene.

I'm really sorry about the crash, that and the crash from playing strip koikoi have me wanting to get a build up sooner rather than later, but i'm currently doing some rebuilding on the gameovers/resetting/save data that i'd like to have smoothed out before posting again. I'm hoping this friday things should be stable enough