Question: What type of games do Guardians of Order and Big Eyes, Small Mouth have in common?

Context paragraphs:
Carpet shark: Carpet sharks are sharks classified in the order Orectolobiformes.  Sometimes the common name "carpet shark" (named so because many species resemble ornately patterned carpets) is used interchangeably with "wobbegong", which is the common name of sharks in the family Orectolobidae.  Carpet sharks have five gill slits, two spineless dorsal fins, and a small mouth that does not extend past the eyes.  Many species have barbels.

Big Eyes: Big Eyes is a 2014 American biographical film directed by Tim Burton, written by Scott Alexander and Larry Karaszewski and starring Amy Adams and Christoph Waltz.  The film is about the life of American artist Margaret Keane—famous for drawing portraits and paintings with big eyes.  It follows the story of Margaret and her husband, Walter Keane, who took credit for Margaret's phenomenally successful and popular paintings in the 1950s and 1960s.  It follows the lawsuit (and trial) between Margaret and Walter, after Margaret reveals she is the real artist behind the big eyes paintings.

Genicanthus: Genicanthus is a genus of marine angelfishes in the family Pomacanthidae.  Known commonly as swallowtail or lyretail angelfish, these fishes are so-named for the distinctive shape of their tailfins.  This genus of angels, in comparison to the other species found in hobby aquaria, are a good choice for beginners as they do not get nearly as large as some of the others.  Another unique attribute is that swallowtail Angels will tolerate each other and can be kept in pairs or as a single male with a harem, though it is typically best to add them to a tank at the same time.  If added on by one, the angel which is added first may become aggressively territorial towards any new additions.  Unlike others in the Pomocanthidae family, the angelfish in the Genicanthus species are generally considered to be reef safe.  Also unlike most other members in the Pomacanthidae family, the Genicanthus genus are sexually dimorphic, meaning males and females are easily distinguishable.  Fish in this species possess a small mouth relative to its size.  This small mouth is well adapted for feeding on plankton in the water column.  As planktavores, members of the genus Genicanthus generally will not nip corals and sessile invertebrates.

Silver Age Sentinels: Silver Age Sentinels is a superhero role-playing game (RPG) published in 2002 by Guardians of Order, creators of "Big Eyes, Small Mouth", an anime-themed RPG.

Advanced d20 Magic: Advanced d20 Magic is an alternative spellcasting system for the "Dungeons and Dragons" role-playing game and the d20 System role-playing game.  It is published by Guardians of Order, the producers of the Big Eyes Small Mouth game and the Slayers d20 game.  The system presents a DC-based Magic System similar to the Sovereign Stone game published by Sovereign Press.

Furcacauda: Furcacauda is a genus of thelodontid agnathan from the Lower Devonian of Canada, and is the type genus of the order Furcacaudiformes.  Furcacaudiform thelodontids were deep water jawless vertebrates with symmetrical fork and lobed-finned tails and scales smaller than typical loganellid and nikoliviid thelodonti scales.  Furcacaudiform thelodonts are noted as having a laterally compressed body, large anterior eyes, slightly posterior, lateral, and vertical to a small mouth, and a condensed curved row of branchial openings (gills) directly posterior to the eyes.  Many but not all had laterally paired fins.  Wilson and Caldwell also note the presence of a caudal peduncle and a long caudal fin made of two large lobes, one dorsal and one ventral separated by 8 to 14 smaller intermediate lobes, giving the appearance of a striated half-moon shaped tail resembling the tail of a heterostracan.  A large square cavity within the gut connecting a small intestine to an anal opening lead many to believe that it is this genus that exhibits the first vertebrate stomach.  According

Big Eyes, Small Mouth: Big Eyes, Small Mouth is a tabletop role-playing game that was designed to simulate the action of anime and manga.  It is frequently referred to by the acronym BESM.  The title alludes to the common anime drawing style of characters with huge, expressive eyes and comparatively small mouths.

Uresia: Grave of Heaven: Uresia: Grave of Heaven is an anime-inspired fantasy world for role-playing games written by S. John Ross.  Originally published for the "Big Eyes, Small Mouth" role-playing game, the most recent edition published in 2012 is systemless.  Like the previous edition, it includes maps drawn by the author.  "Uresia" was originally published by Guardians of Order.

Centauri Knights: Centauri Knights is a campaign setting for the roleplaying game Big Eyes, Small Mouth.  It was written by David L. Pulver and published in 2001 by Guardians of Order.  It is a science fiction setting centered on Osiris, a planet orbiting the star Alpha Centauri, and contains many transhumanist themes.

Guardians of Order: Guardians of Order was a Canadian company founded in 1996 by Mark C. MacKinnon in Guelph, Ontario.  The company's business output consisted of role-playing games (RPGs).  Their first game is the anime inspired "Big Eyes, Small Mouth".  In 2006 Guardians of Order ceased operations due to overwhelming debt.

Supporting paragraphs: Guardians of Order Big Eyes, Small Mouth
Answer: role-playing