SEGA's teaser site features mushroom with 1up-like sound

SEGA’s teaser site is old news. We’ve already told you about the site, and the Mushroom that sits on it.

The news here is that when you mouse over the mushroom at the official site, you’ll hear a sound effect that is almost exactly like the 1up sound effect from Mario games. Click the embed player below to hear a sound comparison.

I wonder what’s going on here! Am I missing out on something obvious? Thanks to Cronosonic for the heads up.