So I ran across the double Altair glitch in Assassin’s Creed. Only, because of the framing story, according to which the main game is just a computer simulation, I didn’t think it was an actual glitch. The game opens with a series of simulated glitches, and I figured this was just more of the same. It wasn’t entirely satisfying dropping through the bottom of the map to my death, or having the camera whipsaw around unpredictably, or being chopped up by my clone, but I thought these were just clever bits of framing, and that the game was leading up to a catastrophic “breakdown” in the simulation.
No. It was just a glitch. After the next major checkpoint, everything went back to “normal.” Consider this an unexpected consequence of breaking the fourth wall; when the game just plain breaks, no one will notice.
Oh, and one more thing. I don’t want to hear any whining from people complaining that the glitch “prevented them from finishing.” I played through the entire section: dodging invisible pits, climbing ladders when I couldn’t see myself, avoiding my own sword, and strategically positioning my clone so the camera angles would work out. It can be done.