Can You Put Nintendo DS Games on a Wii? No—Fundamental Hardware Incompatibility

No. The Wii cannot play Nintendo DS games. They are fundamentally incompatible:

• Different Hardware: DS uses dual ARM processors (ARM9 + ARM7); Wii uses a single PowerPC "Broadway" CPU.
• Different Media: DS uses proprietary cartridges (Game Cards); Wii uses 12 cm optical discs (and GameCube mini-discs).
• Different Architecture: DS has two screens (one touch), microphone, and wireless ad-hoc; Wii has one TV output, Wii Remote, and no native touchscreen.
• No Software Layer: Nintendo never released a DS emulator, Virtual Console wrapper, or backward compatibility layer for DS on Wii.

How to Play DS Games on a Big Screen

• Nintendo DS / DSi / 3DS Capture Card: Hardware mod (e.g., Merki, Loopy) installed in the handheld → HDMI/USB out to PC/monitor. Expensive ($150–300+), requires soldering.
• Emulation (PC/Phone): melonDS (best accuracy), DeSmuME (legacy), or DraStic (Android). Legal if you dump your own cartridges.
• Nintendo Switch Online + Expansion Pack: Includes a growing library of DS games (via emulation) playable on TV.
• Wii U Virtual Console: A handful of DS titles were officially ported (e.g., Brain Age, Dr. Kawashima), but the service is discontinued.

Legal Warning: Downloading ROMs for games you don't own is copyright infringement. Dump your own carts using a DS/3DS with custom firmware (GodMode9, TWiLight Menu++).