Sonic Rush Adventure
Sonic Rush Adventure
Hidden Island 16's layout is nearly identical to the first act of Leaf Storm from Sonic Rush.
Contributed by CuriousUserX90
Like Sonic Rush before it, Sonic Rush Adventure samples a multitude of songs. The extra boss theme even samples a line from the previous extra boss theme (which in itself was already sampled from the 1997 game Grandia).
Contributed by SonicManEXE
The stage music for Machine Labyrinth sounds very similar to the song La Bamba by Richard Valens.
Contributed by CuriousUserX90