It's the Wario Land 4 soundtrack... but not as you know it!
Remade with MIDIs ripped from the game ROM and good quality versions of the soundfont samples from WarioWare Mega Party Games, it's the soundtrack as it would have sounded on the Gamecube or other decent hardware.
Here's a YouTube playlist for the music:
Wario Land 4 Uncompressed Soundtracks - YouTube
Created by @Weario
Remade with MIDIs ripped from the game ROM and good quality versions of the soundfont samples from WarioWare Mega Party Games, it's the soundtrack as it would have sounded on the Gamecube or other decent hardware.
Here's a YouTube playlist for the music:
Wario Land 4 Uncompressed Soundtracks - YouTube
Created by @Weario