CFW (Custom FirmWare) will give you access to free games, emulators, themes and much more on your console!

For CFW on Nintendo devices, thorough guides have been written and are regularly updated and maintained. For that reason I will just link them below:

Switch CFW

3DS CFW

3ds.hacks

Wii U CFW

wiiu.hacks

DSi CFW

Dsi.cfw

Comments

Let me know what you think below!