A few of the heads here in this level require you to hit a few things with Pikarina. For example, there are three owls in trees in the stage needed to get the Owl Head, with the first one being to the left of where you begin. Pound the ground at the Wrestler symbol to go underground, being careful of the continually spawning hand (you can light the candles with Pikarina), and use the spring to get up on the other side.
Another of those heads that require multiple items is here, which is the statue in the background; its eyes will glow red when you have hit it. Open the coffin using your hook, which releases a ghost. Cut this ghost to make a gateway appear to the next area. The second statue is right there as soon as you appear, but you can't open either of the two coffins due to the spider's webs.
To continue, go underground and then left, hitting the big garlic root to get the GARLIC HEAD. Go above on the left side and use your scissors to cut the medallion free from the webbing, freeing the left coffin. You can go back to the middle and open the coffin, although it doesn't really do anything, so go to the right side now. You'll find the second owl on the tree to the right, so hit it and then do the same thing to free the right coffin.
Opening the coffin will make three Grubs appear. Defeat them all to make the next portal appear. In this area, the third statue and third owl will both be to you left, which will get you the OWL and DEVIL HEADS (you'll need the Devil Head to get another head later on in the level). Use the hook on the left to make a bunch of bats appear, using them to get above the coffin and smashing it with your Wrestler Head.
This will make a big skeleton appear, with a flat head on top. If you have the Brain Head, you can use its action here to bypass this mini-fight. Otherwise, you need to use the bats from the left to get high enough to do a Big Body Slam on the skeleton's head. Do this three times and you'll be able to progress to the next area.
The path to the right is blocked by some hands, so go underground and to the left to find the icon to use the Nod Head. Use the hook to make bats appear, which you can use to get to the area on the right with a spider's web. Cut the round thing loose to change the hands from before to springs. You can pound the coffin there to let loose a vampire, who will rant on about stuff. You can also use the Garlic Head action to get some Moonsparkles.
Go underground and to the right, surfacing on the right side, where you can use the Nebula Head action to go to the bonus stage. You can use the Devil Head at the large statue right here to change it to an angel statue, which you can hit to get the ANGEL HEAD. Pull open the coffin to the right to make another ghost appear, except this one can't be cut. Wait until a beam of light appears, then use the Knight's shield to reflect the light on the ghost until it becomes vulnerable to cutting.
Reaper Weaver
There are two ways to go about this fight, the normal way and the easy way, which is achievable with the Angel Head action. For the normal way, you have to hook the hourglass and keep pressing Triangle while dodging the Reaper's attacks, which consist of it sweeping the scythe across the screen. You can still stay hooked while jumping over the scythe, so keep mashing that Triangle button until the Reaper gets stunned.
This will make a beam of light appear, which you can reflect onto the Reaper until the cloth becomes visible. Cut all of the emblems off and the Reaper will take damage. Do this two more times to finish the battle, although note that the position of the light changes every second or so for the third segment. Cut all the souls free to finish off the Reaper and automatically get the REAPER HEAD as your reward.
Tower Laboratory
You're at the front door to General Monkey's lab now, so use Pikarina to hit the door and then the robot butler, netting you the ROBOT HEAD. Now, use the webbing to the right to start making your way around the tower, watching out for the electric pulses at first. There will be spotlights after the first webbing, which if caught, will open the windows and have robots drop something to try and hurt you. Right after the first purple web is the chance to use the Robot Head action. When you see the pillars with the bomb symbol, toss one at it to destroy it.
When you hit the second pillar, the tower will crumble a level and you can see the icon to use the Owl Head action. Use the seam cut to start moving around the tower, making sure to avoid the purple paths that lead to electric barriers. At the end, the tower will collapse another level, leading you to the third tier. Use the hook on the switch to disable the electricity from the wires, enabling you to cut across them.
There will be more purple webbing here, but electric balls will be floating across that area, so go slow to avoid running into them. Bomb the pillar and you will have to do another set of switch and then purple webbing with balls. For the last area, if you go left, you can find an icon for the Blynken Head action, where you can place a heart and the non-drill arm for the robot to bring you to the boss entrance. Otherwise, you will have to go through another series of seam cuts to get there.
BOSS: General Robo-Dog
The boss opens up by swinging its tail around, so block it with the Knight's shield. It'll try to smash you with one or both hands, so use the Wrestler Head slam to pound the hand and then expose the wires on Robo-Dog's arm. Use these to reach and cut off the battery on the shoulder. Note that if you get hit with the tail sweep or fail to block it, then the boss will have both hands on each side of the screen, sending bolts of electricity that can be jumped over or crouched under.
Do the same thing again with the tail, but it doesn't try to use his hands for now. There will be a hook on its head, but you need to use the wires to lure the boss to rotate its head to make the hook appear on the bottom. Drop down, grab the hook and quickly mash the Triangle button. Pound the hand on the ground and cut your way up to remove the other battery.
Now, Robo-Dog will go into the background and fire missiles at you, which are shown as targets on the ground before landing. When it finishes, cut your way through the smoke and wires, avoiding the electric balls, until you get above the boss' head and can do a body slam. The second round of missiles is a little tougher to dodge because of holes in the ground, but it's the same thing. After body slamming him the second time, hit the boss with Pikarina to get the DOG HEAD and then do the QTE to finish Robo-Dog off for good.
