Quick answer

Most leaning and wobbling comes from a base that is not fully seated, a shelf that is not level, or a pose that puts weight in front of the feet. Re-seat the figure on its base, level the shelf, and add a low-friction support under a raised foot before you try heat. If the lean returns within a day or the peg feels loose, stop and use a support or contact the seller instead of forcing the joint.

Separate the symptom from the cause

A lean is a slow, permanent tilt in the figure's body or legs. A wobble is movement at the base or feet when the shelf is bumped. They need different fixes: a lean usually means the plastic is being held under load, while a wobble usually means the base, peg, or shelf is not stable. Check both before you touch the figure. Press one finger gently on the shelf next to the base. If the shelf flexes, the problem is the surface, not the figure.

Check the base and peg first

Most modern figures use a peg or a slotted foot that must seat fully. Lift the figure straight up, look at the peg and the hole, and remove any dust or packaging bits with a dry soft brush. Re-seat it with even pressure over the base, not on the ankles or hair. If the peg enters only partway, the figure will lean even on a flat shelf. Do not sand or enlarge the hole; that removes the friction that keeps the pose upright.

Level the shelf and reduce vibration

A shelf that slopes by even a few degrees will make a top-heavy figure lean over months. Use a small bubble level on the shelf surface. If the shelf is adjustable, move it to a lower position where the bracket is tighter, or add a thin non-slip pad under the base. Keep figures away from speakers, subwoofers, and doors that slam. Constant vibration walks a figure across the shelf and stresses the ankle or knee joint.

Support a raised foot or heavy pose

Dynamic poses often put one foot in the air and the body weight forward. That is normal, but it means the standing leg carries the load. A clear acrylic or foam block cut to the exact height under the raised foot removes the strain without hiding the pose. Measure the gap with a strip of paper, then cut the support slightly thinner so it does not push the figure upward. This is the safest fix for a mild lean and it is reversible.

When heat is worth trying, and when it is not

Warm water or a hair dryer on low can soften PVC enough to straighten a bent leg or accessory, but it also softens paint and can distort thin parts. Try it only on a figure you can replace, and only after the base and shelf checks fail. Heat the whole affected area evenly, straighten slowly, then hold it in cool water to set. Never heat a figure that is still attached to a painted base or a figure with clear plastic parts. If the plastic feels sticky or the paint lifts, stop immediately.

Store and display to prevent the next lean

Rotate figures that share a shelf every few months so the same foot is not always loaded. Keep display areas out of direct sun and away from heaters, because heat accelerates warping. When you pack a figure, remove it from the base and wrap the feet and hair separately so pressure is not held on one leg. A figure that already leans slightly can stay on display with a support, but do not put it back in a hot attic or a sealed car.

Diagnosis: match the symptom to the fix

  • Figure tilts slowly over weeks, base sits flat: The standing leg or ankle is carrying a load it was not designed to hold. Re-seat the peg, then add a support under the raised foot or shift the pose so weight sits over the base. If the tilt returns within a day, stop and use a permanent support instead of re-heating.
  • Figure wobbles when the shelf is bumped: The base, peg, or shelf is loose. Check that the peg is fully seated, clean the hole, and add a non-slip pad or move the figure to a lower, tighter shelf. A wobble that continues after re-seating means the peg or hole is worn; do not force it.
  • Feet or base are visibly bent, not just tilted: This is warping, not a seating problem. Warm-water straightening can work on solid PVC, but it risks paint and clear parts. If the figure is rare, painted, or has clear plastic, choose a support or replacement over heat.

Figures built for stable display

  • JUJUTSU KAISEN: The Culling Game Hiromi Higuruma Luminasta Figure: JUJUTSU KAISEN: The Culling Game Hiromi Higuruma Luminasta Figure stands approximately 9.1 inches tall and is made of PVC, with an estimated ship date of January 2027. A taller PVC figure carries more weight above the base, so seating the peg fully and leveling the shelf matters more than it does for a small figure.
  • Yuji Itadori Combination Battle Jujutsu Kaisen Figure: Yuji Itadori Combination Battle Jujutsu Kaisen Figure is a Banpresto prize figure shown in an epic combat pose with vibrant colors. Combat poses often lift one foot or shift weight forward, which is exactly the situation where a measured support block under the raised foot prevents a slow lean.