Marvel characters, online game, action pose, dynamic lighting, vibrant colors, detailed costumes, textured materials, superhero team, cityscape background, skyscrapers, flying, fighting stance, energy effects, superpowers display, Iron Man flying, Spider-Man swinging, Captain America shield throw, Thor with Mjolnir, Hulk smashing, Black Widow in combat, 3D rendering, high-resolution textures, realistic skin, close-up on faces, intense expressions, mid-battle scene, explosion effects, dramatic shadows, wide-angle shot, interactive environment, MMO interface elements, HUD, players cooperation, teamwork strategy, in-game chat window, futuristic technology, alien invasion, Avengers Assemble, heroic atmosphere, epic battle.