Yes. In Palworld v1.0.3, Kingpaca Cryst can get Heavyweight through currently verified methods: it is a fixed passive. Heavyweight is a fixed passive on Kingpaca Cryst in v1.0.3; every Kingpaca Cryst has it. The facts behind this answer are graded B and come from 2 registered sources.
Reason
Defense +20%
Rank
2
Random pool
Yes
Other Pals
299
Kingpaca Cryst breeding recipes
2
Fixed passives on Kingpaca Cryst
1
Custom slots available
3
Verified evidence claims behind this verdict
2
Kingpaca Cryst parent pairs with a direct source of Heavyweight
2 of 2
Heavyweight breeding route for Kingpaca Cryst: 2 of 2 parent pairs include a direct source (Kingpaca, Reindrix, Kingpaca Cryst).
Why
Heavyweight is a fixed passive on Kingpaca Cryst in v1.0.3; every Kingpaca Cryst has it.
How Heavyweight can be acquired on Kingpaca Cryst in v1.0.3
Current method
Available for Kingpaca Cryst?
Note
Fixed / innate
Yes
Heavyweight is fixed on Kingpaca Cryst — it is born with it.
Random pool (catch or hatch)
No
Heavyweight: no verified rule puts it in the random pool for Kingpaca Cryst.
Implant (Surgery Table)
No
Heavyweight: no verified item method grants it here.
Breeding inheritance
Yes
Kingpaca Cryst can inherit Heavyweight along a verified breeding chain, under the standard passive-inheritance rule this dataset has not independently sourced.
Verdict per requested component on Kingpaca Cryst in Palworld v1.0.3
Heavyweight is a fixed passive on Kingpaca Cryst in v1.0.3; every Kingpaca Cryst has it.
B B · 2 sources
What changed since v0.7.0
What changed since v0.7.0
Component
In v0.7.0
In v1.0.3
Heavyweight
Needs verification—
Currently obtainableit is a fixed passive
How it reaches this Pal
Heavyweight is fixed on Kingpaca Cryst — it is born with it.
Every Kingpaca Cryst in v1.0.3 is born with Heavyweight, so none of its 2 breeding recipes has to carry it.
5 of 299 shown
What you can do now
Heavyweight is fixed on Kingpaca Cryst — it is born with it.
Alternative: Kingpaca Cryst can inherit Heavyweight along a verified breeding chain, under the standard passive-inheritance rule this dataset has not independently sourced.