After you beat the game, you unlocked Zongazonga's Castle. Once you go in there, Talk to the the staff and pay 3000 G.
| Unlockable | How to unlock
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|---|
| Z-Elasmo | Beat Zongazonga Again.
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| Z-Ptera | Beat Zongazonga Again.
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| Z-Rex | Beat Zongazonga Again.
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| Z-Tricera | Beat Zongazonga Again.
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| Zongazonga | Beat Zongazonga Again.
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