"It depends on what kind of Human Morph you are refering to," Rachel says. "Team Rocket had three different projects pretaining to Pokemorphs, two of them weren't as successfull, well, they could've been, had the information not been stolen. There are a total of 5, counting Lance, morphs with the same method of creation, the Kanto Elite 4, who stole the information, and myself, the only successful experiment in the project."
"There was also a project that would make it so Pokemon could transform into humans for a certain amount of time, Team Rocket planned to create an army that could infiltrate Human society, but it also only succeeded once, before the data, and the Pokemon, was stolen in the raid on Silph Co. 6 years ago, stolen by a trainer from Pallet town named Green," Claire says.