Wheel Zombie

Zombie file · Mechanical Snowfield (Outskirts)

Wheel Zombie

The body pushes; the wheel rolls and collides independently.

Body durabilityapproximately 1000–1800 by difficulty
Speednormal

Lore

Wheel Zombie pushes a huge stone wheel along the roads of the Mechanical Snowfield, bearing a grand name and a claim of perpetual motion. Power Peony immediately objects. Curiosity about local technology becomes a dispute over what actually drives the device.

There is a motor inside and a zombie pushing outside. Hygro Plantago and Lightning Reed both notice, while Wiremoss remains proud of the design. Inventive enthusiasm and extravagant advertising share the same frame, leaving passing travelers to inspect the result.

The diaries puzzle over its apparent weight and movement: bulky yet mobile, movable yet stubbornly durable. Debate about the name can continue. For the plants in front of it, the approaching wheel is quite real enough.

Mechanics

Role

Pushing machine · Crushing threat

  • Body durability: approximately 1000–1800 HP by difficulty; normal speed.

  • The independent wheel has 3600 HP; the body can add speed after catching up under valid conditions.

  • Hard plants such as Wall-nut and Enzymei absorb wheel energy with their HP.

  • Power Peony electrons change wheel speed; sufficient opposing input can reverse it.

The body pushes; the wheel tracks its own HP, velocity, and collisions. L denotes the difficulty level starting at zero.

Separate body and wheel durability

Body maxima across the five difficulties are approximately 1000, 1200, 1400, 1600, and 1800 HP. Work to body critical is about two-thirds of the corresponding maximum.

The wheel is a separate 3600 HP machine without a basic-body critical reserve. Its damage appearance changes below 2700, 1800, and 900 HP.

Hbody,max∈{1000,1200,1400,1600,1800} HPHto critical≈23Hbody,maxHwheel=3600 HP,Bdamage={2700,1800,900}\begin{aligned}H_{\text{body,max}}&\in\{1000,1200,1400,1600,1800\}\text{ HP}\\H_{\text{to critical}}&\approx\frac{2}{3}H_{\text{body,max}}\\H_{\text{wheel}}&=3600\text{ HP},\quad B_{\text{damage}}=\{2700,1800,900\}\end{aligned}
Wheel damage bands are not body critical thresholds.

Catch-up, push, and separation

The wheel starts ahead of the body with velocity toward the plants. In 0.17r the body can push a wheel running in reverse, and the pushing reach is wider; position and action conditions still apply.

Ground friction gradually slows the wheel. The body can push the same wheel again when position and action conditions permit; reverse motion no longer rules out a push in 0.17r. The old approximately 2.0 velocity-unit impulse has not been verified in the new build.

Reverse motion no longer prevents an eligible push.

Hard plants absorb kinetic energy

A moving wheel crushes ordinary plants, while hard plants such as Wall-nut and Enzymei absorb kinetic energy with their HP; a sturdy enough plant can still stop it.

Version 0.17r raises nut resistance slightly. The older wheel-speed and plant-HP damage coefficient has not been verified for this build.

The revised damage coefficient remains unverified.

Electron shots and reversed motion

Power Peony’s normal electron supplies about 0.5 impulse and a strong electron about 2.0, changing horizontal wheel motion on impact.

Combination follows a squared-speed relationship rather than simple linear addition. Opposing input cancels existing motion first and can reverse the wheel toward zombies, where collision rules still apply.

Inormal shot≈0.5,Icharged shot≈2.0=4Inormal shotI_{\text{normal shot}}\approx0.5,\qquad I_{\text{charged shot}}\approx2.0=4I_{\text{normal shot}}
Combination follows squared speed rather than simple linear addition.

Objects after separation

Stopping the body’s push does not immediately stop the wheel. It retains its own HP and speed and remains subject to friction, collisions, and electron shots. A surviving body can resume pushing when position conditions align again.

Interactions & counters

  • Wall-nut

    Hard plants absorb wheel momentum; nut resistance rises slightly in 0.17r.

  • Enzymei

    The shell also works as a hard plant, absorbing wheel speed while protecting the same-tile inner plant.

  • Power Peony

    Charged shots can drive the wheel; several Peonies can even push it back into zombies.