In Luigi’s Mansion: Dark Moon on the Nintendo 3DS, you can unlock several endless scarescrapers with a limitless number of floors.
You unlock scarescrapers by beating the Visual Tricks mission in Gloomy Manor.
Here are the endless scarescrapers you can unlock, and how to unlock them.
Hunter Endless – Beat a Hunter mode in a 25F Scarescraper
Polterpup Endless – Beat a Polterpup mode in a 25F Scarescraper
Rush Endless – Beat a Rush mode in a 25F Scarescraper
Surprise Endless – Beat a Surprise mode in a 25F Scarescraper