PC version Fans have made a PC version. Some are still early, so read the project page first.
Fans took Wario Land: Super Mario Land 3 apart and rebuilt it so it runs natively on a computer, often with widescreen, higher frame rates and mods. Here is the project we know about:
A static recompilation study and native port of Wario Land: Super Mario Land 3 with native widescreen support, mods support for HD tile and remastered music.