List any screwed up, strange, or just downright frustrating glitches in games, the glitch can come from any game, can be intentional or not, and from any generation.
One of the most annoying glitches was the recently fixed cursed items glitch from Sei Madou Monogatari, where the curse stays until you use a dispel (even in the town) instead of it disappearing when you are in town, 50 gold+ wasted every dungeon crawl.
There's other glitches that are even worse that got fixed.
http://www.siliconera.com/2013/04/18/holy-sorcery-storys-update-patch-fixes-some-major-bugs/
Countering right before dying prior to the patch 2 days ago would've bricked the game.
One of the most annoying glitches was the recently fixed cursed items glitch from Sei Madou Monogatari, where the curse stays until you use a dispel (even in the town) instead of it disappearing when you are in town, 50 gold+ wasted every dungeon crawl.
There's other glitches that are even worse that got fixed.
http://www.siliconera.com/2013/04/18/holy-sorcery-storys-update-patch-fixes-some-major-bugs/
Countering right before dying prior to the patch 2 days ago would've bricked the game.