The Ghost of RubangB on 03 October 2008
Wario Land 1 is Game Boy only.
Wario Land 2 is Game Boy or Game Boy Color, but enhanced for Game Boy Color.
Wario Land 3 is Game Boy Color only.
Wario Land 4 is Game Boy Advance only.
They made a few games for both because it was the first backwards compatibility crossover period. We don't get GC/Wii or PS2/3 or XB/360 games to smooth out our generational jumps anymore.
