ESXi has a very pretty screen on the monitor attached to it (I have ESXi 5.5, not 3.5 as in the picture... but the screen is more or less the same and isn't the important part of this question):

But... what if I instead want to view one of the VMs running on it? How do I view a VMs screen? Or rotate through the screens of the VMs I have running?
Is there something simple I'm missing, but I can't seem to find out if it's possible to "KVM switch"'ish the screen on my ESXi box...