Mewtwo had just enough memory of last time to not be so alarmed when he suddenly popped into another inescapable, physics-breaking space. However, this was possibly more annoying than the previous "game".
Upon materializing, he took into the air, away from the other beings. To his great dismay, he saw that there were more people than last time. To his even greater dismay, some were humans. Now he knew for sure no being from his world was trying this as prank--none would dare put him in the vicinity of a human.
(Mewtwo tried to call up his full strength, but couldn't. He still had levitation and limited telekinesis; he could telepathically communicate but couldn't get more than the most basic Psychic reads. It must have been like that in the last "game", but his memory was blurry. The humans here didn't look more at him than the Pokemon--he could still defend himself because he was still Mewtwo--)
(mewtwo crushed by heavy armor wires and metal joints jabbing into his skin trying to move fly away he was subdued restrained immobile around him humans humans humans)
(after the last place, the last "game"--floating, formless and powerless in a void of black)
Mewtwo hurled himself into the air. He didn't come across an impenetrable field of force like in the last place, but at a certain point he couldn't increase the distance between him and beings down below. He halted his upward surge and drifted in circles. Thankfully, while there were more people, they mostly seemed engaged in their own affairs.
Eventually, Mewtwo twitched his tail and descended. So a strange force wanted him to play some game--fine. He just wanted this over with. Keeping his thoughts and emotions to himself for now, he more closely examined the other beings. Eighteen in total--five humans and thirteen Pokemon. (Including a Legendary and two others who gave him odd Psychic readings. One had multiple consciousness, but those consciousnesses seemed in struggle with each other. Another being who wasn't human, but who seemed different from a Pokemon in a way Mewtwo couldn't quite grasp.)
He wouldn't be able to do much today; no player--including himself--knew the rules of this game yet. But he paid special attention to the humans, especially the two most mature. One, a female with odd light-colored hair, he had half-paid attention to her speaking with others. Something... it reminded him of a Rocket.
(Mewtwo growled lowly, tensing and curling into himself mid-air.)
As for the other human, his scent irritated Mewtwo's stomach. However, the human seemed to be a source of information Mewtwo could eavesdrop on.
Seeing how others had been manipulated the gray plain, Mewtwo attempted the same. He made himself a den perched atop a tall column, whose entrance was an opening through the ceiling. Sound carried well in this place, so he was able to retreat to darkness and listen, until night came and he could try to seize an opportunity to act.