Appear on screen in pairs of combos of the same CSet. If enemy steps on one of these combos, he will be teleported to other with the same CSet. If Link has Portal Cube, he can use portals to teleport as well.
Update 12.09.2024 - Fixed error that causes portal placed in top left corner of the screen to fail to work.

Requires ghost.zh

1. Set up Portal Cube passive item in Item Editor. No scripts needed.
2. Set I_PORTAL_CUBE constant to ID of item from step 1.
3. Set up combo with CT_PORTAL combo type (Script 1 by default).
4. Check out other constants inside script file.
5. Import and compile the script. 1 FFC script slot assigned.
6. Place portal combos from step 3 on screen. Make sure that each pair of portals have unique CSet, and each CSet appears on portal combos exactly twice. For instance there are 2 CSet 5 combos, 2 CSet 7 combos, 2 CSet 8 combos, etc.
7.Place invisible FFC on this screen. Assign FFC script to it. Also you need to set D0 argument to define cooldown bwtween enemy teleports.