Knuckles in Sonic 2 - All Unused Slot Zones, Hidden Palace Zone and Wood Zone

about the same in normal Sonic 2, but on the Hidden Palace Zone, act 1 does not restart after X coordinate 171F/167F
this video contains "artifacts" (04:40 - 04:47, 02:38 - 02:53, 03:24 - 03:32, 04:00, 05:30 - 05:35)
a cheat code was used to enter the zone FFFE10:XXYY
XX - Zone
01 - Unused Slot Zone
02 - Wood Zone
03 - Unused Slot Zone
08 - Hidden Palace Zone
09 - Unused Slot Zone
YY - Act
00 - Act 1
01 - Act 2