glitch

(noun): A problem affecting function.
(noun): An unexpected behavior in an electrical signal, especially if the signal spontaneously returns to expected behavior after a period of time.
(noun): A bug or an exploit.
(noun): A genre of experimental electronic music since the 1990s, characterized by a deliberate use of sonic artifacts that would normally be viewed as unwanted noise.
(verb): (especially of machines) To experience an intermittent, unexpected, malfunction.
(verb): To perform an exploit or recreate a bug while playing a video game.

They are still trying to work out all the glitches.
Performing this glitch gives you extra lives.
My computer keeps glitching; every couple of hours it just reboots without warning.
His character will glitch into the wall and out of the level.