LEGO Super Mario 64 ? Block | Source: The LEGO Group

What’s in the box? A metal cap? Wing cap? YOSHI?! The iconic yellow Super Mario ? block comes to the real world thanks to LEGO and Nintendo, with the new LEGO Super Mario 64 ? Block building set.

Fans can build this 2,064-piece set to create the power-up block from Super Mario 64, but instead of fun power-ups, there are micro levels inspired by the game hidden inside. Once built, the Block opens to reveal four different levels, including Peach’s Castle, Bob-omb Battlefield, Cool, Cool Mountain, and Lethal Lava Trouble. The ? Block set also includes several microfigures (read: smaller than minifigures) of iconic characters, including Mario, King Bob-omb, Chain Chomp, and Princess Peach.

Designed for adult fans, this new set joins the ranks of previously launched LEGO x Nintendo building sets, including the LEGO Super Mario Starter Course, the LEGO Adventures with Luigi Starter Course, and the Nintendo Entertainment System. The Starter Courses each include an interactive LEGO Super Mario and Luigi figure, respectively, which are compatible with the new ? Block set and enable unique music and sounds from the Nintendo 64 video game. The levels even feature hidden Power Stars that Mario and Luigi can uncover.

The interactive LEGO Super Mario figure included in the LEGO Super Mario Starter Course is compatible with the LEGO Super Mario 64 ? Block | Source: The LEGO Group

Fans will be able to get their hands on the LEGO Super Mario 64 ? Block set exclusively from LEGO stores and on Oct. 1 for $169.99. It will be available for purchase at major retailers next year.