Psycho Goreman (2020)

The young brother and sister from a quiet suburb, Luke and Mimi, discover a mysterious shining stone with which you can control a terrifying monster - a general from another planet. Unusually with the refusals, Mimi takes the artifact for herself and calls the alien guest Psycho-Dismemberment. The monster wanted so badly to destroy the universe, but now he has to obey the stupid wishes of a harmful girl. Meanwhile, the intergalactic coalition discovers that their long-standing enemy has risen on Earth and decides to destroy it.