A Musical Trek

Onpu Block de Athletic! (おんぷブロックでアスレチック！Note Block Athletic!, unofficially known as Difficult Note Blocks) is an e-Reader level for Super Mario Advance 4: Super Mario Bros. 3. The level contains five Advance Coins. Its official difficulty rating is ★★★☆☆. This card was released as part of series two in Japan.

Level Synopsis
This is a fairly standard level set in the sky. Instead of normal platforms, the majority of solid ground in the level consists of Jump Blocks. Other notable features include a Coin Heaven consisting of Jump Blocks, and a segment in which Mario and Luigi must jump on the backs of several Koopa Paratroopas to reach an Advance Coin.

New Level Elements
None.