Welcome to the last level of the game! Wait until Gaff fires the cannon, then use the smoke to get across, noting that you will get hit by some stray cannonballs and not lose a head. You'll be greeted by some Grubs when you get inside of the Black Castle, so take them out and head past the gears. In the room with all of the wires, use the hook to get rid of the rubble, then bomb the floor to reveal a button. Get up high, avoiding the electric balls, and body slam the button to open the path back up again.
Go through the two electrified cogs with the webbing and you'll see a set of cogs are electrified again. Note the stoplight above those cogs, as when it turns green, it becomes safe to jump on the cogs. This will turn red again and the cogs will be electrified again, so you don't have much time. When you get to the very large gear, cut your way around and into the middle to stop it (don't use the boost cut here to avoid touching the electrified walls).
You're blasted back to Castle Wax Wane, where you get packed into the cannon, so press X when ready to launch yourself back to Black Castle. Slide down and use the smoke to get inside of the smokestack. Jump onto the pistons and use the smoke to avoid getting heated up by the fire pillars. You'll have Pikarina point out that there are some extra Grubs being carried on the conveyor above you and if you hit all three with her, you'll get the GRUB HEAD.
Carry on to the end and wait for a minecart to arrive, jumping in. Jump out at the end and use the smoke to get past the spinning fire part. You'll now have a minecart chasing after you, so slide down the hill and keep going right until you can use a seam cut to eventually reach a switch you can body slam. Be careful of the things the Grubs throw and take out the beam flower first, then slowly make your way up, taking out the Grubs. Pound the switch and use the smoke to reach the other side, tossing a bomb into the engine; do this two more times to finish this section off.
Blast off again and use the clouds to reach the Black Castle, where you will be inside of a cannon. If you use R2 on the cannonball, you will get the BLACK CASTLE HEAD (the cannonball will keep appearing). Use the smoke left behind to get above and then use the elevator on the right to drop down to the floor below, noting you can use the Grub Head action here to get to the bonus stage.
There will be a large conveyor belt next, where you will find pistons trying to smash you, as well as bombs being dropped on it. Note that you can destroy these bombs with your own, which helps a lot on the section where the bombs stick to the conveyors. At the end, you see the gunpowder mill, which will require you to use the hook to damage. It spits bombs at you, which are marked on the ground with targets. After three hits, you're finished with it and have to escape from the castle using seam cuts and normal cuts.
BOSS: Moon Bear King
He's quite large, isn't he? Moon Bear King starts the battle by stomping the ground with his feet. You can damage him by tossing bombs out that he will step on, being mindful of the large ball-thing he summons with his feet after hitting them once. Hit both feet twice and you will initiate a seam cut sequence on both legs that will finish off the first phase. There will be a short QTE that follows, leading to the second phase.
Of course, Moon Bear King learns some new attacks during the second phase, one of which has him try to smash you with a boulder. He will also hit the ground with an electric thing, sending out a quick shockwave. When he goes into the background, he will make boulders appear that roll towards the screen. The goal in this phase is to use your hook powers to pull on the thing on his stomach. It's best to wait until after he does the boulder smash move, since it's a little hard to keep pulling and dodge it.
After pulling the hook twice, there will be another seam cutting sequence, where you will have to jump over obstacles. There will be another QTE here that leads to the third phase. His only attacks here will be using his fan to summon a large gust of wind, as well as some debris, then swipe the screen with his large paw immediately afterwards. Use the Knight's shield to throughout the first attack and hopefully it isn't completely spent to block his swipe.
Blocking his swipe will damage his paw and after the second time, he will blow you upwards, so use the smoke to get back to the ground. As soon as you land, be ready for another swipe and if you block it, this will initiate another seam cutting sequence. There will be another QTE sequence that will lead to the final phase.
It's just Moon Bear King's head left now, with him spewing out debris that falls from the sky. Block them using the Knight's shield and he will try to smash you with his head. Use the smoke to get above him and then do a body slam on the back of his head. He will use the same attacks throughout this phase and once you body slam him three times, do the final seam cutting sequence to return him to normal size. Hit him with Pikarina to get the MOON BEAR KING HEAD, then do the final QTE sequence to finish him off for good.
| You have beaten the game, which will get you the KUTARO HEAD. This one is special, in that, it can be used to perform ANY of the actions for every head in the game. If you replay the final stage, you can get the LITTLE BEAR HEAD in place of the Moon Bear King head at the end of the boss fight. |


