Complete walkthrough for all missions in Sonic Adventure 2, including finding the core, collecting rings, locating the lost Chao, beating time limits, and clearing Hard mode.
- 1Mission 1: Find the core of the Prison!
- Start To Checkpoint 1: Immediately, defeat the 5 Beetle enemies. Four are in front, one behind. Destroying the front four opens the main gate. The rear one opens a side gate to a Chao in a pipe. Proceed down the tunnel, destroying a flying enemy, a camera, and an enemy past a gate to open it. After the first elevator and entering/exiting a cell, another elevator leads to the top of the cell. Going up and hopping the railing reveals a Chao box in a side cell. Continue past two metal boxes and two unbreakable enemies; beware of enemies dropping from the ceiling. Break wooden boxes, then another enemy drops. After an enemy with many weapons, proceed down the tunnel, avoiding two flying enemies that can deplete rings. The first checkpoint is to your left.
- 2Checkpoint 1 To Checkpoint 2: Destroy the enemy past the gate to open it. In the next room, defeat enemies dropping down and a flying enemy from the opposite tunnel. Before the elevator, a Chao Box is guarded by an enemy dropping from the ceiling. Take the elevator up, proceed through the tunnel, and destroy four Beetle enemies to open a gate. Defeat two more Beetles and a canister. Enter the large elevator shaft; destroy enemies around you by locking on and firing to hit multiple at once for bonus points. The next checkpoint is at the top.
- 3Checkpoint 2 To Checkpoint 3: Destroy enemies to open gates. Ignore steam from pipes. At the end of a tunnel, an enemy drops near a gate; destroy it to open the gate. In the small opening, defeat flying enemies. Take the elevator to the right to find a 20-ring capsule and a shield. A shrine is to the left. Continue through the stage, destroying enemies. After two elevators, defeat the enemy at the top, then enemies across a gap to open a left gate. Reach another elevator, and the Golden Beetle is past it; defeat it for 1000 points. Beware of flying enemies above. To release an animal in a cage, turn around, hover to the top of the other cell, and shoot the rocket. Continue without major issues, destroying enemies to open gates. You will eventually reach checkpoint 3.
- 4Checkpoint 3 To Goal: Destroy enemies on the other side of the gate to open it. Continue to an opening and defeat four Beetles. As you approach the elevator, three more enemies drop; destroy them. If the gate doesn't open after taking the elevator up, look behind you for an enemy high up near where you entered; destroy it to open the gate. Continue down the passage, destroying enemies. You will reach the goal. The Laser Blaster can be picked up to the left past the goal. Ensure all enemies in the goal room are destroyed, including those high up.
This stage requires careful attention to avoid flying enemies that can cause significant ring loss, dropping a maximum of 20 rings. Prioritize collecting ring capsules.
After the second checkpoint, go down a tunnel to a small opening with another tunnel ahead. Instead of proceeding, look right for an elevator in the floor. Take it to the roof of the tunnel. Look left for an ancient shrine. Hover to it and play the Mystic Melody. A spring will appear; use it to reach a higher floor. Destroy nearby enemies and land. A gate will open, allowing access to a tunnel where the lost Chao is located at the end.
This mission is similar to Mission 1 but with a strict time limit. Focus on speed, destroying only necessary enemies and avoiding detours.
- Start To Checkpoint 1: Immediately, you'll notice differences. There is one Beetle past the gate, and two more enemies drop from the ceiling as you approach. Destroy them.
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