blue hedgehog, Sonic character, dynamic running pose, red sneakers, white gloves, green eyes, spiky hair, sidekick, orange fox, Tails character, two tails, flying action, cooperative gameplay, mechanical enemies, Dr. Eggman antagonist, colorful loops, speed boosters, rings collection, checkered hills, bright sky, pixelated texture, retro style, 2D platformer, side-scrolling, vibrant environment, power-ups, boss battles, Eggman's robots, special stages, golden rings, bonus points, multiplayer mode, sunset lighting, clear weather, action-packed, high-speed chase, loop-de-loops, corkscrews, energetic soundtrack, nostalgic atmosphere.