The clip comes from online reaction to a Super Mario Galaxy trailer shown during the Super Bowl, which many fans felt did not match what they had hoped for. The phrase Mario betrayed us summed up that letdown in a way that was easy to quote, remix and reuse, so it moved from reaction videos into memes, edits and short-form clips. It has stayed useful because trailer disappointment is a recurring moment in gaming culture, and a short, dramatic reaction fits almost any reveal that falls short of the hype.