Ninja Rope trail persists after rope has disconnected
From Worms Knowledge Base
If Ninja Rope manoeuvres are interrupted by the player's worm coming into contact with a Landmine, the Rope will be disconnected but the pixels of the rope may persist, especially if there is background terrain behind them.
This appears to affect Worms: The Director's Cut exclusively, and only on an emulated Amiga, however further testing is required.