Groups comparison
Slippery surfaces (Slick surfaces)[Ice;Grease;Icy surfaces;Greasy surfaces;Oily surfaces] - 1987 to 2020
Player encounters and must deal with slippery surfaces of any kind (anything that is notably lacking in friction).
Fake surfaces(Fake platforms;Illusory surfaces)[quicksand] - 1988 to 2016
Surfaces or other platforms that are not as tangible as they give the impression of.
Surface variations - 2010 to 2016
Surfaces have variations in their properties, such as friction.
Elastic surfaces - 2011 to 2015
Player encounters and must deal with elastic surfaces of any kind.
Player encounters and must deal with slippery surfaces of any kind (anything that is notably lacking in friction).
Fake surfaces(Fake platforms;Illusory surfaces)[quicksand] - 1988 to 2016
Surfaces or other platforms that are not as tangible as they give the impression of.
Surface variations - 2010 to 2016
Surfaces have variations in their properties, such as friction.
Elastic surfaces - 2011 to 2015
Player encounters and must deal with elastic surfaces of any kind.
slipperysurfaces
fakesurfaces
surfacevariations
elasticsurfaces