Hollow Knight character, progressing through game, platforming action, nail sword, focused expression, determined pose, exploring, ancient bug kingdom, Hallownest, atmospheric lighting, intricate background, caverns, bioluminescent plants, misty, foreground focus, side view, Metroidvania style, detailed armor, cape fluttering, challenging enemies, platforming obstacles, upgrade abilities, collect charms, defeat bosses, solve puzzles, hidden paths, eerie ambiance, 2D art style, high contrast, dynamic shadows.