Does Rock Band Work on Nintendo DSi? No—Here Are the Rhythm Games That Do

No. Rock Band was never released for the Nintendo DSi (or any DS/DSi model).

Why Not?

• Hardware incompatibility: The DSi lacks the USB port required for the instrument controllers (guitar, drums, microphone).
• Processing power: The DSi's ARM9/ARM7 CPUs (67/33 MHz) cannot handle the audio streaming, note highway rendering, and multi-track synchronization the game requires.
• Storage: DSiWare size limits (~20–30 MB initially) are far too small for the game engine plus song data.

Rhythm Games That Are on DSi/DS

• Elite Beat Agents / Osu! Tatakae! Ouendan 2 (DS) – Touch-screen rhythm action.
• Rhythm Heaven / Rhythm Tengoku Gold (DS) – Minimalist, stylus-based rhythm.
• Band Hero / Guitar Hero: On Tour (DS) – Uses a "Guitar Grip" accessory in the GBA slot (DS Lite/Phat only; not DSi).
• DSiWare rhythm titles: Rhythm Core Alpha, Music On: Drums, Music On: Guitar (simpler, single-instrument apps).

For the full Rock Band experience, you need an Xbox 360, PS3, Wii, PS4, or Xbox One.