The whole combo system in fighting games originally started off as an unintended exploit. Also other fighting game mechanics like cross-ups.
On a personal level, I usually try to finish my first playthrough of a single player game as intended by the developer, then use glitches and exploits to...
When done well, sandbox games are great but more often than not especially in small independent projects it just winds up being sandbox for the sake of sandbox. So the game either becomes a chore to figure out where you have to go next to progress without proper signposting, and sometimes with...
I think every game made by Anmitsuya has virgin endings and references to the character's virginity. From Magician Leena to Little Braver to Primal Sphere to Prjtiere of the Abyss. It's like their thing.
Most games which tracks virginity/sexual experience in some kind of H stat status screen...