Super Mario Bros. Glitch - Mario dies and wins at the same time.

[misanthropiclusion]

Im pretty sure the second time the tune plays is because you find a fucking toad instead of peach

[johngears11]

don't you know that it's so

[MrLukke15]

There's also sort of a "continuation" of this glitch. If you do this while you're big, you'll start the next world big but the game acts as if you were small. So when you grab a mushroom, you shrink and when you get a fireflower, you'll be small but have the fireflower colours, it's actually pretty funny :D

[dp457]

Toad is such a trololol

[Super2Donny]

The death tune fits the "Sorry Mario, but our princess is in another castle" :p