If you own a physical copy of the game, you can legally rip your own ROM. However, to play a downloaded ROM, you need an emulator. The gold standard for Wii emulation is Dolphin Emulator (available for Windows, Mac, Linux, and Android).
If the background music loops awkwardly: lego batman 2 dc super heroes wii rom
Disclaimer: I am not a lawyer. This information is for educational purposes regarding abandonware and fair use. If you own a physical copy of the
Searching for a lego batman 2 dc super heroes wii rom exists in a gray legal area. Note: The PC version of Lego Batman 2
Note: The PC version of Lego Batman 2 exists and is native. So why seek the Wii ROM? For the nostalgic motion controls and the ability to play the "Wii-exclusive" control schemes on modern handhelds.