B to blow

"Press B to blow."

- Markiplier

B to blow is a meme in DN1 and DN2. It is a meme related with the game mechanic to blow a lit candle by pressing B. It can be depicted as both a meme in the DN series, and as a game mechanic. It is extremely popular among the DN community. In fact, it is so popular, that it has became very iconic for the game to be sometimes referred to as "Press B to blow 2: The memory".

As a mechanic
As a mechanic, B to blow can be really useful when inside dungeons. A lit candle may attrack Mary, which is something you should avoid. Also, a lit candle will cause Skeletons to move, follow the player, and maybe even kill him/her.

Trivia
The term "B to blow" was coined by the famous youtuber Markiplier.