DmC is the first game to receive many OoB thanks to specific tricks that allows characters to breach the wall or jumps that makes them interact environments in a way that are not intended. Therefore, it's one of the glitchiest games that exist in 2013. To learn more about this see Akheon's FAQ
This page lists all usable skips and glitches that are done in a run. Major Glitches are skips that breaks the behaviour of this game. It causes mission map loadings to be abnormal. No Major Glitches is the opposite of that.