As you find and obtain gold in this game, you will periodically unlock upgrades to the Poltergust 5000, your primary weapon against the ghosts infesting Evershade Valley. These unlockables can result in the ability to deal stronger attacks to ghosts or to allow your Dark-Light Device to have more use.
| Unlockable | How to unlock
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|---|
| #1 - Power Gauge Upgrade | Collect 2,000 Gold.
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| #2 - Dark-Light Upgrade | Collect 4,000 Gold.
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| #3 - Power Gauge Upgrade | Collect 7,000 Gold.
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| #4 - Dark-Light Upgrade | Collect 10,000 Gold.
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| #5 - Super Poltergust | Collect 20,000 Gold.
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