anime style, Undertale character, dynamic pose, expressive eyes, spiky hair, casual outfit, action scene, pixelated texture, underground setting, fantasy environment, glowing heart, determination, monster encounters, side-view battle, colorful magic effects, 2D platform, puzzle-solving, retro gaming aesthetic, soft shading, dramatic lighting, close-up shot, detailed expressions, vibrant colors, creative composition, atmospheric background, adventure theme, indie game, iconic soundtrack, emotional storytelling.