Getter Robo/Nightmare Fuel

• The final volume of Getter Robo Go, starting with the revelation that the Humongous Mecha Shin Getter Robo (or rather, its power source) is sentient. Particularly what happens to Gai. He's so frightened of the machine that his mind breaks and he becomes trapped in nightmarish hallucinations. When he tries to blow the machine up with a missile launcher, cables extend out the machine and eat him alive until his grinning face is literally fused into the side of the robot. That scene, and again where Shin Getter absorbs its pilots, the villains, the villains' fortress/mecha, and a good chunk of the North Pole before flying to Mars, imply that being absorbed brings enlightenment and takes people into some kind of heaven though.