=====================
Levels
=====================
Extra act - Green Hill Zone (object placement is unfinished)
Extra zone - Jungle Zone

=====================
Objects
=====================
Heat shield (Marble Zone)
Scuba shield (Labyrinth Zone)
Boss hit counter (not working properly in some levels)

=====================
Misc.
=====================
Spindash (ported from S2F)
Expanded level select
Title screen updated
Continue feature - reload the last zone you were in and your chaos emeralds, even after closing the ROM!
Record your own demo in debug mode (stored at 0x20 in the saveRAM)
Debug mode enabled by default (A+Start)
Marble Zone pillars have been fixed