Kaiju Keys (怪獣キー Kaijū Kī) are items that GUTS-Select use in conjuction with GUTS Sparklence to fire specialized ammunition. When not in use, they are stored in the GUTS Buckle (
They also have Ultra counterparts called GUTS Hyper Keys.
Known Existing Hyper Keys
- As the Kaiju Keys are mostly sold in real life through SG and Gashapon releases, they lacked built-in electronics despite reusing the same plastic molds like the GUTS Hyper Keys (as the latter's battery compartment exists). Announcements on their characteristics were made through combination pins through the DX GUTS Sparklence, hence they have no special announcements when used in DX Circle Arms.
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|Ultra-Related Items||Transformation Item | Spacium | Ultra Bell | Ultra Key | Ultra Mind | Plasma Spark | Ultlive | Childhood Radiation|
|Series Collectibles and Holders||Spark Dolls | Cyber Cards | Ultra Fusion Cards | Ultra Fusion Card Holder | Kaiju Cards | Ultra Capsules | Ultra Capsule Holder | Kaiju Capsules | R/B Crystals | R/B Crystal Holder | R/B Crystal Collection Case | Ultra Taiga Accessories | Ultra Access Cards | Ultra Medals | Z Holder | Kaiju Medals | GUTS Hyper Keys | Kaiju Keys|
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