Part 23

Complete walkthrough for all Green Stars in Super Mario Galaxy 2, starting with World 1 galaxies like Sky Station Galaxy.

After collecting 120 Power Stars and returning to Bowser's Galaxy Generator in World 6, you must re-enter and defeat Bowser again. Do not turn off the game after the credits; Rosalina will begin a story about the Green Cosmic Jewels (stars). Upon reopening your game file, prankster comets will appear at every galaxy you've visited, revealing the Green Stars.

This guide provides walkthroughs for each Green Star, detailing how to get from one to the next within each galaxy. Refer to earlier level walkthroughs if you are unsure of your location. The Green Stars are listed in chronological order, but can be collected at any time.

World 1

Sky Station Galaxy

1. Green Star 1: Wall jump off the middle tower on the right side past the sign and spin.
2. Green Star 2: After the 1st Checkpoint (an auto-save point you restart from on death) Flag, at the top of the tower left of the bonus portal with the disappearing yellow platforms, do not use the Launch Star. Stand in the right back corner and jump off the edge of the tower.
3. Green Star 3: In the glass planet, at the bonus portal on the right side, backflip over it and wall jump off the right wall, then spin.

Yoshi Star Galaxy

1. Green Star 1: Atop the green hill in the first area where the Comet Medal sat. Use Yoshi to jump/float, then dismount for extra height.
2. Green Star 2: Right of the first Launch Star, jump/float to the cave in the stone wall.
3. Green Star 3: Where the crystalized Power Star was, swing on the flowers to the highest one at left to jump/float & dismount to reach it.

Flip Swap Galaxy

1. Green Star 1: From the next safe platform, take a running start and time a triple jump on the red platforms ahead, between the electric fields, without spinning. If you miss, bear left to land on a blue platform.
2. Green Star 2: After the 1st Checkpoint Flag, at the second set of Chomps rolling on the platforms, come to the red & blue side-by-side. Wait for the Chomp to start rolling along the blue platform and jump/spin to the red. Triple jump from left to right to reach the Star above where the Chomp starts rolling on the red platform. If you miss, spin in midair and bear left onto the blue platform.

Spin Dig Galaxy

1. Green Star 1: On the 2nd planet with the tall towers side-by-side, backflip onto the fence bordering the overside & underside of the planet. Straight down in the foreground from the left tower, stand on the edge of the fence, then backflip & spin for it.
2. Green Star 2: On the next planet after Green Star 1, head to the left side with the yellow disappearing platforms. Do not use the Launch Star! Triple jump by hopping to the 1st yellow block, then the 3rd, and aim your last jump in the back right corner of the 3rd platform. Spin for good measure to nab the Star.
3. Green Star 3: Once underground, drill on the right side. Walk into the drill enemy to lose the drill and 1 health point. Pound the enemy and do not get the drill back. Wall jump off the left side, then right & spin for the Star.

Fluffy Bluff Galaxy

1. Green Star 1: At the beginning, get a cloud flower and return to the first platform you landed on. On the shadow on the ground, backflip & use clouds to reach the Star high above it.
2. Green Star 2: Grab a cloud flower & use the back left stationary clouds to the 1st Checkpoint Flag. With 3 clouds, long jump parallel to the wall at left, using clouds to stay alive and reach the Star.
3. Green Star 3: At the spot where you find the missing Toad, use a cloud flower to reach a tall green hill adjacent to the cliff where the monkey sits.

Rightside Down Galaxy

1. Green Star 1: At a green platform that flips you to normal gravity just after the 2nd Checkpoint Flag, backflip & spin towards the Star in the corner between the platform & the gravity pulling area.
2. Green Star 2: Pass the Thwomps and backflip/spin to get atop the last upside-down one. Backflip/spin right to the Toad, then backflip upside down & wall jump off the right wall to get the Star.

Bowser Jr.'s Fiery Flotilla

1. Green Star 1: Backflip & spin to get atop the Thwomp at the beginning, then long jump/spin atop the castle. Head along the left side's rim to the back tower for the Star.
2. Green Star 2: This can be risky. Get the Life Mushroom and just before the Launch Star, long jump to the Star over the lava. If you miss, hotfoot on the lava to reach it. At least you'll have 6 health points instead of the usual 3.

World 2

Puzzle Plank Galaxy

1. Green Star 1: On the first platform, use the trampoline and pound on the right edge that isn't on the shadow. Spin in midair and wall jump off the ? block, then spin to get atop it. Backflip & spin from there to reach the Star high above it. If you break open the ? block, you...