Talk:Serious Mode/@comment-73.169.132.160-20151108225939/@comment-70.83.46.99-20151108233934

It's not a "mode" per se but something normally encountered in the game. In some very dramatic circumstances (such as during important boss fights or all the way throughout a Genocide run), the game decides that this is not the time to dilute the mood with jokes and removes some silly abbreviations.