Items can be used by Billy through his adventure to both help him and defeat enemies. Some eggs contain minigames that can be accessed through the game link cable to a GameBoy Advance.
Item Eggs[]
| Name | Description | Egg | Picture |
|---|---|---|---|
| Paraloop | Use light to defeat enemies. |  |
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| Thorn Egg | The egg can grow sharp thorns. |  |
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| Bomb | You can blow up anything. |   |
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| Bat | Vampire bat that sucks blood. |   |
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| Crow | It will steal your light. | |
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| Gorilla | Can double your power. |   |
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| Chameleon | Can turn you invisible. |   |
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| Mouse | Shrinks you to mouse-size. |   |
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| Turtle | Use its shell for defense. |   |
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| Lion | Makes you invincible. |   |
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| Dice | Drops everyone's health to 1. |  |
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| Super Fruit | Instantly raises any egg. |  |
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| Tiger | Breaks all eggs other than yours. | |
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| Sheep | Counting makes you sleepy...? | |
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| Hawk | Breaks all other eggs with wind. | |
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| Fox | Steal someone else's items. | |
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| Butterfly (Large) | Replenishes a lot of health. | |
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| Stopwatch | Time stops for everyone else. |   |
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| Butterfly (Small) | Replenishes a little health. | |
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| 1 Up | Receive an extra life. | |
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| Chick Bomb | Chases your target. |   |
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| Egg Bomb | Everyone sees it as a normal egg. |   |
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| GBA | Chu Chu Rocket! Challenge. |   |
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| GBA | NiGHTS Score Attack. |   |
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| GBA | Billy Hatcher Hyper Shoot Easy. |   |
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| GBA | Billy Hatcher Hyper Shoot. | |
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| GBA | Puyo Pop. |   |
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