a badass anthropomorphic Chihuahua with a fierce expression and a spiky collar. His physique should be lean and muscular. The character has robotic arms that are polished metal with intricate engravings, featuring articulated joints and powerful claws. His fur is a mix of vibrant colors, and he wears a bandana stylishly around his neck. Emphasize a hyper-detailed, cartoonish style that captures both his fierceness and playful charm, merging elements of pop surrealism.