Design a flat vector esports mascot logo. Character shape: A perfectly round black circle head. On top of the head, add ONE small sharp spike (like a tiny flame tip). Face: Only two eyes. No mouth. No nose. Eyes are simple oval shapes, slightly tilted to look expressive. Style: Very minimal. Flat. Bold. Clean vector. No gradients. No 3D. No shadow. No texture. Colors: Background full yellow. Character full black. Eyes yellow. Composition: Character centered. Symmetrical. Professional esports logo style. No text. White background not allowed.