multiplayer, online coop, Enter the Gungeon game, two characters, side-by-side, dynamic pose, shooting, pixel art style, dungeon background, colorful bullets, retro aesthetic, detailed weapons, co-op action, fantasy creatures, interactive environment, glowing portals, treasure chests, health pickups, top-down view, vibrant lighting, shadow effects, 16-bit textures, roguelike elements, split-screen, teamwork, intense gameplay, arcade vibes, neon signs, stone walls, digital effects, high contrast, co-op strategy, fun atmosphere.