This appears to have been intended to be the first of two giant-size comics. As published, it is one 52-page comic and two 36-page comics. It is continued with Hybrids: The Origin #2. Which is extended to #5.
The cover reads "Special Revengers Hybrids Highbreds" (the word Highbreds obscured by the Hybrids logo). The indicia reads "Revengers TM Trade Issue". The trademark "TM" is not actually part of the indicia title, just listed that way for trademark purposes.