A Musical Trek
From the Super Mario Wiki
A Musical Trek 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, and only became available outside of the country when the game was released for the Wii U Virtual Console in 2016. The key art featured Larry Koopa.
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 or Luigi must jump on the backs of several Koopa Paratroopas to reach an Advance Coin.
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