Sonic and his 2 closest friends go to the Starfall Islands in search of the emeralds, we already know their adventure.
But what if one more person joined the team, helping his rival. Wonder how the story will turn out if one more hedgehog joins them?
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The hedgehog duo arrive on Chaos Island, Shadow re-forms as the Emeralds scatter again. They are surrounded by volcanic mountains and experience snowy weather.
Shadow: Hmm...What a strange phenomenon this is. Hopefully it won't complicate our search.
Sonic: Listen, you find Egghead while I free Tails.
Shadow: Signal when you're ready, when you've found an emerald. We will find the rest together again.
Sonic: Just don't get lost! See you later.
They continued their journey separately. Sonic also fights with the island's guardians, Shadow also has a vision barrier.
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Shadow: Hmph! I was starting to miss the company.
The huge spider uses all 8 legs to keep the hedgehog under constant pressure. Shadow uses his speed to easily dodge the stomps, then he attacks back. When Azonan tries, an energy wall blocks his attempt. He tries twice more, then observes his opponent.
Shadow: I have to neutralize his legs first, I'll definitely have a chance to attack.
He does so. Uses 8 medium Chaos Spear attacks, one per leg. After the spider falls to the ground, Shadow begins to endanger his opponent with homing attacks and boost combos. However, the Spider does not give up, using multiple forces to blow his attacker into the air. Instead of panicking, Shadow takes advantage of the situation.
Thinking that it has gotten rid of the hedgehog, the spider rebuilds its legs and moves on to fight the next intruder. However, a small orange ball can be seen in the sky, which seems to be getting closer and closer to the guardian. Up close, it's not so small anymore, it looks like a smaller burning rock. This "meteorid" hits the center of the spider. After the impact, the whole island is swept by the wave of Shadow's energy he released, the guardian is destroyed, leaving behind another blue gear. Our hero is about to collect his prize when someone grabs it instead
Shadow: Huh? Sonic, are you back alredy?
???: Your fighting skills are commendable, you proved this by defeating the guard. However, I can't allow Sonic to go into cyberspace any more, so I'll taking the gear.