How to Breed Jellroy
in Palworld 1.0

The shortest chain of crosses from wild-obtainable pals to Jellroy, in order.

1. 1
   LamballWild Lv 1-9 (Main island)

   +

   LoupmoonWild Lv 14-38 (Main island)

   →Jellroy

Any one of these pairs produces a Jellroy egg directly, no intermediate steps.

LamballWild Lv 1-9 (Main island)

+

LoupmoonWild Lv 14-38 (Main island)

LamballWild Lv 1-9 (Main island)

+

GrintaleWild Lv 20-48 (Main island)

LamballWild Lv 1-9 (Main island)

+

MunchillWild Lv 10-41 (Main island)

CattivaWild Lv 1-9 (Main island)

+

TurtacleWild Lv 5-39 (Main island)

CattivaWild Lv 1-9 (Main island)

+

DazziWild Lv 30-36 (Main island)

CattivaWild Lv 1-9 (Main island)

+

NeedollWild Lv 31-36 (Main island)

ChikipiWild Lv 1-9 (Main island)

+

LovanderWild Lv 30-42 (Main island)

ChikipiWild Lv 1-9 (Main island)

+

WixenWild Lv 23-36 (Main island)

ChikipiWild Lv 1-9 (Main island)

+

DinossomWild Lv 25-34 (Main island)

LifmunkWild Lv 1-14 (Main island)

+

SweepaWild Lv 25-40 (Main island)

LifmunkWild Lv 1-14 (Main island)

+

GoriratWild Lv 22-34 (Main island)

Fuack IgnisWild Lv 32-36 (Main island)

+

RoobyWild Lv 4-14 (Main island)

Passives can pass from a parent to its offspring during breeding, and which ones make it through is partly random. The odds are well understood from community reverse engineering of Palworld 1.0: a child directly inherits 1 to 4 passives from the parents pool (40/30/20/10 percent for exactly 1/2/3/4), then 0 to 3 random passives can be added on top (40/30/20/10 percent for 0/1/2/3). The Breeding Calculator now turns those constants into per-egg odds and an expected egg count for the exact passives you are hunting.