Since the PSPgo doesn’t have the camera that can be used on the original PSP’s, games like Eyepet and Invizimals will not be supported by PSPgo’s.
Sid Shuman, the senior social media specialist, said the PSP camera was “designed for pre-Go models only,” and “current camera will only fit onto the larger PSP model”, and there’s “no workarounds”.
There is a rumored peripheral attachment for the Go that might work as a work-around, but it has yet to make its way to the US.
Sony was later on asked about this peripheral, they responded by saying that there isn’t “any information yet on a peripheral attachment for the Go”.
You could however, import the cable from Japan, which should do the trick.