| Gem | Where | What you need |
|---|---|---|
| Tomato Gem | Dropped by the Giant Spider at the end of the spider prison | Prison access; players climb the pillar beside the spider and jump onto its back |
| Guarana Gem | Dropped by the Giant Moray Eel in the sewers | See how to beat the eel |
| Corn Gem | Chest in a side room of the bat dining hall, blocked by roots | An Axe to cut the roots |
| Bean Gem | At the foot of a statue at the bottom of the Crypt | — (the six-statue puzzle is just past it) |
What the gems do
Place all four on the statues and offer a Deep Dish Pizza to start the final fight — survive 3 skeleton waves and you get the Seed (regular ending). Full steps on the endings page.
Players also report that putting a single gem on certain statues makes the matching crop grow.