Complete Part 8 walkthrough for Super Mario Galaxy 2, covering Cosmic Cove Galaxy and Bowser's Lava Lair, including all Power Stars and secrets.
A letter arrives from Honeybee with a 1-Up for completing Honeybloom Galaxy.
Walkthrough
- 1Cosmic Cove Galaxy - Twin Falls Hideaway
- Swim forward to platforms, grab a Koopa Shell, and dive down.
- 2Use the Sling Star for Star Bits.
- 3Grab the ? coin and the Comet Medal ahead and slightly right in an open shell.
- 4Reach a tower, ground pound the red switch on top to freeze the lake.
- 5Spin to skate on the ice.
- 6Approach the frozen twin waterfalls and wall jump between them.
- 7At the top left, spin the crystal twice for the Star, which falls to the right.
- Skate on the ice to the right to find a green pipe.
- Enter the pipe, pound the brick block to slide down, and swim right.
- Spin crates for coins.
- Jump over a bubble to avoid being pulled back, then wall jump and go right to the Checkpoint (an auto-save point you restart from on death) Flag.
- Dive down with Z, go left, and collect coins to refresh your air supply.
- Avoid spiky plants and use vent air to head right.
- Spin the lever to open the floor below.
- Avoid eels, head down to the pipe to the outside.
- Jump into the stationary water and swim along the path.
- Wait for an enemy to pass and grab the 1-Up below it.
- Head up to the safe platform to refresh your air supply, then continue in the water to the top.
- Jump into the moving cube of water, then to the next, then up to the key on the left.
- Use the pipe on the right to return to the beginning and free the Luma.
- Use the Luma's Launch Star to move on.
- On the Starshroom ship, hit the Checkpoint Flag and use the Launch Star.
- Avoid purple enemies that create an electric field.
- Find a Spin Drill and use it on the long rectangular patch of soil on the bottom side of the planet to reach the opposite side.
- On the new side, avoid Mechani-Koopas.
- Find a soil patch with water leaking out, drill it to flood the planet into a water sphere.
- Swim up to the platform with the star.
- A penguin has joined the ship's company.
- Re-enter Twin Falls Hideaway.
- A Hungry Luma awaits by the tower. You need 15 coins.
- Feed the Hungry Luma 15 coins to use its Launch Star.
- Hit the Checkpoint Flag.
- Talk to the bunny a step away from it.
- Left of the Checkpoint Flag is a blue ! switch. Pound it to freeze the planet, allowing you to skate.
- Catch the bunny to win the Star.
- Beat the Magikoopa to reveal a Pull Star.
- Aim with the Wii remote and press/hold A to reach the next area.
- Jump between fireballs and on moving platforms to a trampoline, then pound it.
- Backflip and spin over a ring of fireballs, ride platforms, and grab the Life Mushroom.
- Spin the crystal and use the Launch Star.
- Hit the Checkpoint Flag.
- Navigate spinning platforms over a lava pool.
- A safe platform is on the right, then a Hammer Bro to defeat further up.
- Use the Sling Star.
- Jump atop a rotating firebar platform to use the ? coin, then walk around the circle of coins for a 1-Up.
- Pound the switch just up from there to lower yourself.
- Use spinning platforms to reach a green carpeted area with wall slammers.
- Wait for them to fall, then pound the cracked star on its back.
- Head right, beat an enemy, then triple jump and spin to reach the Comet Medal high above.
- Head right to a golden ball, pound its center, aiming for the stone lock with a red Bowser on it.
- You'll be pulled forward to a new area. Hit the Checkpoint Flag.
- Carefully navigate the floor being eaten away by piranha-like enemies.
- Head up and ride a purple moving platform right, grabbing a Life Mushroom atop a rotating firebar platform.
- Defeat a Magikoopa and head right to safety.
- Ride the next purple platform, jumping over electric beams from Bowser statues, then up to Hammer Bros.
- Hit the Checkpoint Flag and get the Life Mushroom from the left pole.
- Pound the golden ball, aiming and firing at 3 stone Bowser locks to be pulled into the Bowser fight.
- After a chat, you'll reach a small planet where Bowser sends stone balls.
- Ignore the lights that appear, then he will pound the ground.
- Jump on a golden ball and pound it, aiming for Bowser before they turn to stone.
Tips
- In Twin Falls Hideaway, use the Koopa Shell to dive further down.
- In Cosmic Cavern, use the vent air to head right and the Spin Drill on the correct soil patch.
- For Secret Star #1, freezing the planet speeds up the bunny chase.
- In Bowser's Big Lava Power Party, time your jumps well on the spinning platforms and rotating firebars.
- Aim carefully when pounding the golden balls to hit the Bowser locks.
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