101Leafy researched the game with the Hilltop Works fan translation patch, English translation by Cargodin
Fish Car魚車

Fish Car is row 4 of the game's guilü table, with the element Water. The battle screen reads (Shoot Earth!): it is weak to Earth.
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: Antenna Shark Fish Car Egg Spider
English translations by Cargodin for Hilltop Works Fan Translation Patch: https://www.patreon.com/hilltopworks/posts/kowloons-gate-160555525?collection=18503