Customfloors are a built-in terrain tileset provided in the MegaZeux editor. Like all floor types, customfloors have the property that they can exist beneath and be moved over by other objects, such as the player, robots, or built-in items and enemies. Customfloors in particular allow the user to choose any artwork out of the character set to be displayed, where other floor types have a single defined appearance. This property, while making them marginally more complicated to work with, means that a MZXer with even the slightest technical or graphical inclination will use customfloors in favor of anything else almost all of the time. See also: Customblocks
Customfloors can be accessed from the editor by pressing F3 and selecting them from the menu. Placing them also involves selecting a character to display, which can be changed at any time by moving over them on the board and pressing Enter.