Part 21

Jump up the platform to the left for 7 gems, then up again and destroy the chest for a golden gem.

Flame a Cook on the left for a green gem. Defeat the Blind Runner that starts running at you for a green gem, then get the one that follows it for a purple gem. Flame the Cook responsible for another purple gem.

Go back along the edge for two green gems beside a chest containing a golden gem.

Turn around and jump up the two steps to find two purple-topped chests.

Get back on path and go between the two unreachable platforms to get 15 gems. Be cautious, as some Blind Runners will ambush you; charging is recommended.

Defeat the Blind Runners (both release purple gems) and the Cook after them (purple gem).

Behind that Cook, three Blind Runners will appear. The first two drop green gems, the third drops a purple gem. The responsible Cook drops a green gem.

Head towards the whirlwind, but go past it towards the building. Go around the right-hand side and flame the Cook hiding there for a golden gem.

Go around the back of the building to find a hidden whirlwind. This whirlwind takes you to the top of the building where you'll find 17 gems.

Face away from the rest of the level on the building's top. Jump and glide to the distant platform with a twinkle on it to find a pink gem. Glide back to the tower.

From where you land, turn left and glide to a platform on mainland to find two green gems.

Jump back down to the lower ground and go up the whirlwind you passed earlier. Jump down the steps in this arch to get three red gems.

Destroy the wooden chest by the leftern edge for a golden gem.

Jump up the step, and then to the platform with Doctor Shemp. He will run to the other end, revealing his unarmored back. Flame his back, and he will drop a purple gem and open a bridge.

Follow him over the bridge. He will spin and smash with his sceptre. While he spins, try to flame his back. He will drop a golden gem.

Follow him over another platform. He will do a spin move and drive his sceptre along the ground. Jump over it, then flame his back to defeat him, earning 25 gems total.

Run over the bridge that unrolled and charge through the metal chests for 15 gems.

Carry on left past the 'Return Home' vortex and get two loose green gems. Destroy the chest in the corner of the platform.

After beating Doctor Shemp, go past the 'Return Home' vortex and jump down to a lower platform. If you have the key, the chest there will release a pink gem.

Glide down to the lowest platform in the area to find two metal chests giving you 7 gems.

Carry on through the tunnel/arch behind them to reach the previously unreachable platforms. Glide over the gap to the Cook and flame him for a purple gem.

You will have collected 300 gems and completed the level and world.

Head back to Trondo, jump across the platforms where you fought Doctor Shemp, and leave out of the vortex.