"A humanoid robot with a distinct retro aesthetic, reminiscent of 1970s sci-fi. The robot's head is a smooth, featureless helmet. Its face is a single, flat, digital screen that displays simple, glowing symbols or minimalist expressions. It has grappling hook launchers integrated into both wrists. On its back and the soles of its feet, there are visible thrusters that look powerful but slightly crude and industrial. A key feature is an inverted, concave core in the center of its chest, glowing with a soft, internal light, suggesting it's recessed into the body. The overall design should feel more analog and mechanical than sleek, with visible joints and a slightly weathered, metallic texture."