Red Sonic & Blue Knuckles is a mod for Sonic 3 A.I.R that switches Sonic and Knuckles' colors around. This is based on a glitch in the original Sonic 3 & Knuckles that can cause this to happen. Originally, there was a mod like this on Gamebanana, but it was removed, and I couldn't find it, so I made my own! This takes advantage of the Data Select Customizer, so Sonic will be red and Knuckles will be blue. Also Tails is just confused on the title screen.