Sonic the Hedgehog 3 & Knuckles/Bugs
From Sonic Retro
Contents
Level bugs
Flying Battery Music
In Flying Battery Zone, the song's echo track will go off sync after two loops, and slowly gain drag behind the lead melody.
Not fixed in any version
Flying Battery Boss
Playing as Knuckles, in Flying Battery Zone 2, the Boss is Robotnik instead of Egg Robo.
Not fixed in any version
Knuckles in Carnival Night
Playing as Knuckles, one can take Sonic's path in Carnival Night 2, then glide over the boss area revealing a load of junk.
Not fixed in any version
Knuckles Palette
Due to palette limitations, Knuckles' socks change colors; when you are playing as Knuckles, they are green. When you are playing as Sonic, Tails, or Sonic and Tails, they are yellow. Furthermore, as can be noted by entering Sky Sanctuary Zone act 1 as Knuckles through cheating, the two 'versions' of Knuckles have slightly different hues.
Not fixed in any version