There is a bonus area nearby, to access it, consult the relevant page. Jump on the collapsing platform and kill the Dark Dantini on the pillar ahead (be careful, you don't have any crystals yet). Then go up the stairs and follow the path, collecting the crystals you find. Among them there is also the camouflaged red crystal. Cling to the monkey bars on the right and drop onto the collapsing platform at the opposite end. Quickly jump on the rotating platforms and smash the crate on the pillar in the middle to get the first Gobbo. Then reach the door and enter.
Jump on the rotating platforms in front of you and climb the pillar. You will find a chest with the second Gobbo. Reach the platform ahead, go up the stairs and follow the path. You will then have to jump onto some collapsing platforms, avoiding the swinging spiky balls. Timing is everything. Go along the wooden walkway collecting the crystals (among them there is the camouflaged green crystal) and reach the next door.
Jump on the rotating platform and avoid the electric shocks (there is a collapsing platform alongside, if it can be useful). Reach the next pillar and go up the stairs, following the path. You will have to avoid other spiky balls. You will come to a wooden walkway with three crystals, the one in the middle is the camouflaged blue crystal. Climb on the rotating platforms and reach the pillar in the center when there is no electric discharge, to get the third Gobbo. Use the platforms again to reach the door.
Quickly cross the wooden bridge in front of you, grabbing the crystals. Two Dark Dantini on unreachable platforms will try to hit you, so don't stop. Break the chest to get the yellow crystal. Continue and do the same thing, crossing the next bridge. You will find a chest with the fourth Gobbo. Finally, cross the last bridge and exit the door.
Get on the gear in front of you and reach the walkway further ahead. You will have to watch out for attacks from a Dark Dantini, which you cannot eliminate. Smash the two crates to get the pink crystal and the fifth Gobbo and press the button in the center. Platforms will appear near the gear. Climb them to reach a pillar. From here, you will have to jump onto a long line of collapsing platforms, never stalling, because two Dark Dantini will shoot you from the sides. You will then reach the crystal door. Before entering, stomp the chest to the side to get some crystals.
Reach the pillar on the left, jumping onto the treacherous platform. Quickly take out the Dark Dantini and press the button. Go back, jumping on the platform you made appear and follow the only path available. You will find a chest containing crystals and another Dark Dantini. You will come to another button, press it. Go back and, thanks to the platform you made appear, you can reach a pillar with a chest containing the last Gobbo. Be careful though, because on the crate there is a Dark Dantini that will attack you, try to jump to the side. At this point, you can easily reach the gong and hit it to complete the level.