Secretz

X Y Secret Type Description of the location
5 30 Red Warp (RW) #1 On your way back to the island the Bare-handed Grunt
(now Springz ) started from is a TBT that is the SecretTeleporterTrigger.
The RW will open two TBTz to the east.
The RW will take you to the area where there is a Warp letter and two Coinz (Coinz #5 & #6).
4 9 RW #2 The SecretTeleporterTrigger is a Switchable Bridge Tile (SBT) in the northbound path.
The RW will open two Toggling Bridge Tilez (TBT) to the southwest.

The RW will take you to the “GooRoo” area, where you will be able to pick up several Coinz (Coinz #7 through #18.
36 17 RW #3 The SecretTeleporterTrigger is a Coin (Coin #28) in space atop a stable SBT north of the Trap Doorz.
The RW openz on the SBT within the Trap Doorz.
The RW takez you to the area where the Warp letter
and three Coinz (Coinz #29, #30 & #31) are visible.

Note that a 'purist' would have exactly one RW and exactly one Question Mark Switch in a puzzle.
Plus, only the (single!) Warp letter would be acquired via the RW . ("PERFECT!" possible in 'Easy' mode.)