Objects that
appear only in debug mode, but not during normal gameplay:
Door - Aquatic Ruin:
An ordinary door, not used.
Ball - Oil Ocean:
A ball that comes out of the ground when a switch is pressed.
Lava balls - Hill
Top Zone:
A bubble appears, then spits out two fireballs that move outwards in two symmetrical
arcs.
Spinning laser beam platform
thing - Wing Fortress:
A platform that spins around and produces a large laser beam periodically.
Spinning pole enemy - Wing Fortress:
Smal pole thing. Hurts Sonic when you walk into it, and an animal comes of it
when you destroy it.
Objects &
graphics that can only be accessed by hacking:
Turtle - Sky Chase:
When you destroy an enemy in Sky Chase Zone, a turtle falls out (presumeably to
its death). But since there's no floor in the level, you don't normally get to
see the turtle walking.