101Leafy researched the game with the Hilltop Works fan translation patch, English translation by Cargodin
Egg Spider蛋虫

Egg Spider is row 5 of the game's guilü table, with the element Metal. The battle screen reads (Shoot Fire!): it is weak to Fire.
It is on drop table 1, whose first weight gives all 64 rolls to nothing, so it never drops anything even though the table lists Shellfish Powder, Guilü Balls, and Men's Extract after it.
Guilü table: Fish Car Egg Spider Egg Walker
English translations by Cargodin for Hilltop Works Fan Translation Patch: https://www.patreon.com/hilltopworks/posts/kowloons-gate-160555525?collection=18503