Checkride maneuvers in the gyroplane include vertical descents, power on and power off, both of which require holding the nose above the horizon. The descents can also be made with bank held on. Rotor rpm is not an issue during these maneuvers.
The above is part of the FAA flight test for the Commercial Gyroplane Pilot License.
Thankfully there are people here who can correct miss information posted by people who haven't the faintest clue about the subject.