Tumorous bipedal creatures that can be encountered in 1994's Phantasy Star IV: The End of The Millennium Sega Genesis/Megadrive roleplaying video game. The biomDanafalgue and Gicefalgue share the same game sprite but have different color schemes and statistics.

While arguably the weakest biomonster on all of Planet Motavia, its horrifying appearance and rapid reproduction make the Xanafalgue one of the most feared by the general populace. These organisms attack by discharging bolts of electricity from their tentacled maws (some biologists have hypothesized that the constant, undulating motion of said appendages somehow builds up the charge.) While a single shock is usually sufficient to kill smaller prey, such as rodents, a healthy human adult can usually weather several blasts from the creature before finally succumbing. Xanafalgues are spawned in great numbers by a larger biomonster, the Igglanova, via fission. It is not known if an Igglanova is the adult form of a Xanafalgue or if the Igglanova simply produces Xanafalgues as a defense mechanism. Similarly, Gicefalgues are created by Guilgenova.

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Materials:
Newsprint, tissue paper, wire twist ties, white glue, gloss nail polish, and acrylic paint.

Dimensions:
4.4 cm/1.7 in. x 3.7 cm/1.5 in. (widest point x highest point)

Time:
Two days; November 13 and 14, 2011.