Can you use new rock band 3 drums on rock band 2?

Yes, you can use the Rock Band 3 drums with Rock Band 2. The Rock Band 3 drum kit is backward compatible with previous Rock Band games, allowing you to play Rock Band 2 with the newer kit. However, some features unique to Rock Band 3, like the keyboard or pro mode, won't be available in Rock Band 2. Make sure your game console settings are configured correctly for optimal performance.