- ―Henshin Call
Yuko Minami (Formerly)
|First Appearance:||Ultraman Ace Episode 1: "Shine! The Five Ultra Brothers"|
After the Rings sense danger, they flicker causing Seiji and Yuko jump into the air, and spin around until their rings hit each other, and then combine into Ace. Later, after Yuuko leaves to go to the moon, Seiji wears both rings, and hits them together to transform.
Ocansionally Seiji and Yuko will yell Ultra Touch! (ウルトラタッチ！ Urutoratatchi!).
- The Ultra Rings are the first transformation items used by more than one person.
- In fact, Ace doesn't have to use two humans to be his host, because to transform to his true form, he only needs the two Ultra Rings to touch each other. So, his host only need to wear two Rings in two fingers then let them touch each other.
|Showa Items||Beta Capsule | Ultra Eye | Will Power | Ultra Rings | Ultra Badge | Leo Ring | Bright Stick | Beam Flasher|
|Heisei Items||Delta-Plasma Pendant | Will Power | Beta Capsule/Flash Prism | Estraller | Pikari Brush | Spark Lens | Nice Dreamer | Reflasher | Esplender | Agulater | Cosmo Pluck | Just Lancer | Evoltruster | Darkevolver | Max Spark | Mebius Brace | Knight Brace | Ultra Zero Bracelet | Ginga Spark | Dark Spark | Dark Dummy Spark | Gunpad | Ginga Light Spark | Livepad | Victory Lancer | Chibu Spark | X Devizer | Orb Ring | Orbcalibur | Riser | R／B Gyro | Orb Ring NEO|
|Manga Only Items||Zoffy Bracelet | Jack Bracelet | Gorian Belt | Zaji Sword | Drew Bracelet | Flare Coin | Alphonne Pendant | Ars Ring | Mimicry System|