Part 21

Complete walkthrough for Part 21 of Sonic Heroes, guiding you through the Egg Fleet level. Learn strategies to defeat enemies and navigate the challenges to reach Eggman's flagship.

Walkthrough:

1. Start on Eggman's shop. After a dash ramp, land on the rail and grind down. Head straight, avoiding rapid-fire cannons.
2. Defeat all enemies to open a door. Go through and head down as Sonic. Jump and use blue tornado to fly up a pole to a platform with cannons and a robot.
3. Defeat the robot, avoid cannons, and hit springs to fly into a cave.
4. Enter a cannon, which sends you into another. Destroy this cannon to reveal a path.
5. Turn around, defeat all enemies, and use Knuckles to destroy another cannon. Hit the spring to be sent to a ledge with a rail.
6. As Knuckles, grind the rail to a fan. Use triangle dive to get on the rail and grind it down to springs.
7. Hit the springs to reach a platform with a cage containing the Special Stage Key. Break it open with Knuckles and grab the key.
8. Hit the springs to reach the next ledge. Hit the checkpoint, then jump across floating platforms. Use light dash in the air to proceed.
9. Head south to reach rails. Grind them over to an area with many cannons.
10. Avoid cannons and defeat a new robot that shields against homing attacks. Use Knuckles' fireball technique.
11. Go through the opened door to find a stationary propeller. Use blue tornado to ride it through balloons, rings, and cannon fire to the next battleship.
12. When you land on the battleship, hit the checkpoint and head straight. Destroy the huge cannon with Knuckles and head up the ledge.
13. Jump to floating platforms across the gap. If you fall, use Knuckles' triangle dive on a fan to get back up.
14. On the other side, switch to Tails and fly up platforms. At the top, go left through a tunnel.
15. Fly to a platform with a pole and use Sonic's blue tornado to head up.
16. On the next platform, destroy a cannon to reveal a shortcut. Defeat the enemy here to open the required door.
17. At the end, use rocket accel (run forward and press B to duck and charge) to pass the conveyor belt lasers.
18. At the end of the conveyor belt, you'll blow a hole through the battleship. Fall down onto a rail and grind it.
19. Switch to Knuckles and use triangle dive across fans to the other side. Grind the rail to the next platform.
20. Use Team Blast to clear cannons and enemies. Throw the switch to start the fan. Use triangle dive to head up the fan and a series of fans.
21. When you can't go up anymore, go onto the ledge. Destroy a cannon to reveal a spring to continue.
22. Go up more fans until you reach a checkpoint. Hit the dash ramp and head straight on the next battleship.
23. Destroy the cannon blocking the path and head down. Stop at the