Sonic 3 & Knuckles & Knuckles & Knuckles!
Knuckles over Mecha Sonic is a Sonic 3 A.I.R. mod with changed boss. Made by Teilzmer_. #Sonic3AIR #Sonic3AIRMods #Sonic #SonicTheHedgehog #SonicMods #Sonic3 #knucklestheechidna
Additional Sonic 3 A.I.R. mods:
Eggman's Revenge [Harder Bosses] (mod by 1funniman);
Sonic 3 (& Knuckles) Alternate Soundtrack (mod by daversgamers);
BossBar (mod by Elsie The Pict);
Sonic Mania Adventures Special Remix - "Big Arms" by Tee Lopes & Jun Senoue;
![](https://i.ytimg.com/vi/Ji4CQBhKJfo/maxresdefault.jpg)