After he rescued Jack from Gudis, Great chose Jack as his human host to survive on Earth and gave him the Delta Plasma to transform into him and fight the monsters.
To use the Delta Plasma, Jack gingerly places it in the palm of his left hand, closes his eyes, and concentrates. It then emits pulsating synthesizer noises and a light which transforms him. The "rise" scene for the transformation shows Ultraman Great emerging from amidst an explosion from a swirling galaxy.
- Delta Plasma (DX accessory set, 1993)
- Release Date: TBA
- Price: TBA
- Materials: TBA
- Accessories: Delta Plasma/Color Timer, Ultraman Great torso suit (kid-sized)
- Delta Plasma (Die-Cast Swing Luminous, 2018)
- Release Date: April 17, 2018
- Price: 5,980 yen
- Materials: ABS, MABS, Die-Cast
- A Tamashii Webshop exclusive, this Delta Plasma is a show-accurate life-sized replica of the transformation trinket, complete with die-cast body and a light-up gimmick. Like the rest of the keychain figures, the Delta Plasma pendant also comes with a single metal ball chain. However, you can change it into a necklace string if you wish.
- The Die-Cast Swing Luminous Delta Plasma could be ordered at December 2017 until January 9, 2018 at 11p.m., and was shipped to customers at April 17, 2018.
|Showa Items||Beta Capsule | Ultra Eye | Willpower | Ultra Rings | Ultra Badge | Leo Ring | Beam Flasher | Bright Stick | Bright Bracelet|
|Heisei Items||Delta Plasma | Willpower | Beta Capsule/Flash Prism | Estrellar | Pikari Brush | Sparklence | Lieflasher | Esplender | Agulater | Nice Dreamer | Cosmo Pluck | Just Lancer | Evoltruster | Darkevolver | Max Spark | Mebius Brace | Knight Brace | Ultra Zero Eye | Saga Brace | Ginga Spark | Dark Spark | Dark Dummy Spark | Gunpad | Ginga Light Spark | Livepad | Victory Lancer | Chibull Spark | Ultra Fusion Brace | X Devizer | Orb Ring | Orb Calibur | Riser | Ultra Zero Eye NEO | Giga Finalizer | Gyro | Orb Ring NEO|
|Reiwa Items||Taiga Spark | Tregear Eye | Taiga Tri Blade | New Generation Eye | Z Riser | GUTS Sparklence | Ultra D Flasher|
|Other Media Items||Zoffy Bracelet | Jack Bracelet | Gorian Belt | Zaji Sword | Drew Bracelet | Flare Coin | Alphone Pendant | Ars Ring | Mimicry System | Ultra Operation|