Games are so complex thats its almost impossible for them to be perfect here are a few bugs to get the thread started.
The bad.
In part of warframe their are a few pools in one location that have never been fixed , if you jump in them you fall into a green screen loop because you were never meant to do it.
In some of the half life games you can squeeze whrough doors you were never meant to go in and again a green screen loop.
The good
In one of the far cry somebody forgot to make an end of playing area marker on the map so you could go for a swim and if you did it long enough you would eventually appear on the far side of the same island.
In one of the dragon age you could jump behind a building and wedge yourself into a corner to escape fires and eveything that wanted to kill you.
In some games that involve going up or down mountains etc its possible to enter areas the programmers never intended you to go into just by altering you view angle , you can jump up mountains without sliding back or slide down a series of high peaks without falling and dying. I have done this in skyrim and horizon zero dawn.
The bad.
In part of warframe their are a few pools in one location that have never been fixed , if you jump in them you fall into a green screen loop because you were never meant to do it.
In some of the half life games you can squeeze whrough doors you were never meant to go in and again a green screen loop.
The good
In one of the far cry somebody forgot to make an end of playing area marker on the map so you could go for a swim and if you did it long enough you would eventually appear on the far side of the same island.
In one of the dragon age you could jump behind a building and wedge yourself into a corner to escape fires and eveything that wanted to kill you.
In some games that involve going up or down mountains etc its possible to enter areas the programmers never intended you to go into just by altering you view angle , you can jump up mountains without sliding back or slide down a series of high peaks without falling and dying. I have done this in skyrim and horizon zero dawn.