From their website:
It has been several months since the last update to the Monsterpocalypse Errata document. The attached document covers all Monsterpocalypse errata and clarifications to be used in conjunction with the Monsterpocalypse Now rule book.
In addition to the consolidation of past errata, this document introduces a couple of tweaks to rules that have been discussed extensively on the Monsterpocalypse forums. Please make special note of the Morphers Entering Hyper Form rules errata as well as the Ignite Skill ability errata.