The Apex Arzuros for Monster Hunter Rise (Switch) is a guide on Apex Arzuros, its build, differences, stats, and other new information from the 4th official trailer in MH Rise.
Apex Arzuros Information
Apex Arzuros Introduced In 4th MHR Official Trailer
Apex Arzuros first appeared in the 4th Official Trailer as what seems to be the main boss monster to defeat in The Rampage. It's striking black body, blood red eyes, and bright red outlines make it look monstrously fierce. As an "Apex", it would be safe to assume that it would be the strongest among its kind.
Different From Redhelm Arzuros
In Monster Hunter XX: Double Cross, a stronger variation of Arzuros called Redhelm Arzuros was introduced. However, given their clear physical differences including the mohawk, it would be safe to assume that they are different variations of the same species.
Apex Arzuros roared upon his first appearance, and the hunters seemed to be terrified. As an Apex Monster, it would be logical to assume that its roar would be more powerful than the regular Arzuros.
Affected By External Factors?
From the way it looks, it would be hard to presume that Apex Arzuros is just an older, naturally occuring form of the regular Arzuros. There's a chance that it was affected by external factors. In the event that The Rampage has contagions such as viruses and the like, monsters becoming Apexes may be a side effect of these external factors.