Spike is a bounty hunter who was born on Mars, June 26, 2044. He is 27 years old and has fluffy dark-green hair and brown eyes; one of which is artificial and lighter than the other. His right eye was surgically replaced with a cybernetic one. He is usually dressed in a blue leisure suit, with a yellow shirt and boots similar to those worn by Arsène Lupin III. Spike makes use of sleight of hand techniques to win card games, pickpocket, and slip things onto other people unnoticed. He is also shown to sneak up on enemies through disguise or quiet movement. He is proficient with weaponry (such as his personal Jericho 941 as well as other guns and explosives) and hand-to-hand combat skills. He is a skilled martial artist and a practitioner of Jeet Kune Do. Spike is also a pilot and flies a converted Asteroid racer called Swordfish II, which is armed with four machine guns, missile pylons, and a plasma cannon.