Head unit parts breakdown.

You can see various metal parts below the neck that draw power from the mercury battery.

Two LR43 mercury batteries are used for the PG Zaku II mono-eye LED.

Molding on the inside of the outer armor. It's a grid pattern.

Only the top hatch on the head opens.

The neck uses a double joint, so it has a bit more range of motion than you'd expect.

The adjustment section for rotating the mono-eye.

The mono-eye LED switch is located below the neck.

Maybe it's because two mercury batteries power the LED, but the light is noticeably bright.

Torso parts breakdown.

Outer armor removed

Internal mechanical frame

True to PG standards, the detail is well done all the way inside the waist connection point beneath the backpack.

There are two movable cylinders beneath the shoulder joint.

The cockpit seat can slide in and out.

The power pipes on the torso use a bead-stringing style, but they're held taut using spring tension.

Below the waist, there are special movable cylinders both front and back.

These two movable cylinders each function as a suspension system using springs.

The cylinder on the back of the torso. If you press it with your finger it compresses, and when you let go
it springs right back up with a snap.

Viewed from the outside, the outer armor extends and compresses just like a suspension system.

The cylinder on the front of the torso also moves in and out under pressure.

Viewed from the outside, pressure from above pushes the front skirt down, and when released it springs back up.
Both skirts are linked and move together.

The double-jointed waist lets the torso lean back quite a bit.
With all the armor on it won't move quite as far, though.

Molding inside the skirt.

Overall, the inside of all the outer armor panels has molding throughout. That's PG for you.

Detail on the inside of the cockpit front armor. You can even spot what looks like a pilot's monitor.

When you open the backpack cover, the cylinder inside moves along with it.

Part Review

The opening angle of the upper torso hatch is pretty narrow, so you can't really see inside all that well. -.-

Something to watch out for when assembling the torso —
The lower part of the piece that secures the arm connection tends to pop out easily. =.,-
If you don't glue it down, it keeps coming loose whenever you remove the arm or move it around a lot, which is a real headache.

The top of the torso is completely open. That's because the neck parts are attached to the head.

Cockpit hatch open.

Without opening the large cockpit hatch, you can also open just the small hatch on the lower right separately.

Arm parts breakdown.

Outer armor removed.

The arm doesn't bend a full 180°, but it bends enough to get the job done.

Still, it's a PG — not being able to fold it completely is a bit disappointing..

The joint connection is unique, so you can freely change the direction of articulation like that.

Cylinders move at the point where the shoulder spike armor or shield armor connects.

Cylinder on the upper forearm.

A single cylinder moves at the wrist, and the wrist can also bend 90°.

And of course, PG fingers with every single joint articulated individually.

Molding on the inside of the arm armor.

The only hatch that opens is that one tiny section at the elbow.
The internal mechanics look decent enough, but it seems like they really didn't put much thought into the hatch-opening features.. -.-

Leg parts breakdown.

Considering those chunky leg cylinders, it bends as much as you'd expect from a PG.
Still, it does feel just a little lacking compared to other PGs.

Cylinders above the knee (not sure what happened, but the colors in this photo are way off -.-;;)

Cylinders below the knee

The leg armor is double-layered, so even after removing the outer frame, there's still another layer of mechanical structure underneath.

The ankle articulation is just so-so, but the sole itself is split into sections that each move nearly 90 degrees, which means..

...you can pull off a kneeling pose like this. The shape does look a bit odd -_-;
But then again, with legs this chunky and feet this wide,
this is probably the only way to get that level of joint articulation for a kneeling pose..

The knee cylinder movement is a bit unique. The cylinder connection uses a double joint.

The cylinders at the front of the ankle. They are cylinders, but they're not articulated — just plain plastic rods T_T.
Would've looked so much cooler if they were plated and movable.
Also, the PG Zaku II doesn't have spring suspension at the ankle. On the plus side, that does make the ankle joints a bit sturdier.

The cylinders linked to ankle movement.

The only solid molded joint used aside from the fingers. It's very similar to the one on the PG RX-78.

The 4 cylinders each move independently.

This solid joint piece is used at the connection point between the legs and the body.

Molded detail on the inside of the leg armor.

This is the only hatch on the legs that actually opens properly.. -_-

The power pipe structure is pretty unique.
Short springs and a bunch of power pipe armor pieces.. how do you connect all of these?

First, you fix a screw to one end of the spring, attach the poly-cap piece for plugging into the body,
then thread the power pipe armor pieces onto it one by one like beads on a string.

Since the total length of the power pipe armor pieces is longer than the spring itself,
you have to stretch the spring out by force and hold it taut while making sure the armor pieces don't fly off the end
and secure it with a screw.
This construction results in a power pipe that's super taut and springy.
It's got way more life to it than the MG power pipe setup, where the pieces just hang loosely on a rubber tube like beads on a string.

The weapons are a bit lacking. Just the typical Zaku machine gun and heat hawk, two weapons total.. -.-

Machine gun parts breakdown.

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The second grip rotates horizontally so the other hand can hold it.

You can pull out the barrel, and there's a little bit of internal frame detail in the exposed area. (Hard to see, isn't it? -.-;;)

One of the cooler highlights — open the magazine cover and you can see the bullets inside, which looks really realistic.
There's also a single display bullet included separately.

The machine gun lens uses clear parts on both the front and back, so you can actually see straight through it.

The machine gun grip also has a locking pin to secure it in the palm of the hand, as expected.

Heat hawk parts breakdown.

Includes the heat hawk and the mount for attaching it to the body.

The axe blade is made from a clear part, which gives it a really distinctive look.

The heat hawk also has a peg for securing it in the palm of the hand.

The heat hawk mounted on the side of the body.