Echoes has the unusual ability to take on three distinct forms, ACT1, ACT2 and ACT3, which Koichi may call upon alternately. Each form allows the use of a different ability, such as generating sound effects or applying weight to a target.
Echoes first appears as a large egg whose bottom is covered in swirling spots.
The series is known for alternating colors between media, the information presented below may or may not be canon.
Colored MangaAnimeFilm
Shell(White)
Spots(Emerald green)
Shell(White)
Spots(Emerald green)
Shell(Beige)
Spots(Dark green)
ACT1
ACT1 takes the appearance of a three-section larvae-like creature. Its oversized first section serves as a head and two small shelled arms are attached to it. The head is covered with a shell on top of which a spike is visible, and the face is nearly entirely covered by metallic blinkers, only leaving a small beak visible. The second section is a shelled torso with a dark belly. The third section is equipped with a set of small wheels and a large serpentine tail with a dark belly and a clearer back covered in swirling spots and at whose end is a metallic rattle.
The series is known for alternating colors between media, the information presented below may or may not be canon.
Colored MangaAll-Star BattleEyes of HeavenAnimeFilm
Body
(Green body with black spots and inner tail)
Features(Golden beak, rattle, spike and blinkers)
Additions
(Purple wheels and forearms with magenta stripes)
Body
(Olive green body with purple spots and inner tail)
Features(Golden beak, rattle, spike and blinkers)
Additions
(Purple wheels and forearms with brick red stripes)
Body
(Olive green body with black spots and purple inner tail)
Features(Golden beak, rattle, spike and blinkers)
Additions
(Purple wheels and forearms with brown stripes)
Body
(Emerald green shells, light green body, black spots and ebony inner tail)
Features(Golden rattle, spike and blinkers)
Additions
(Black wheels with golden inner forearms and beak)
Body
(Dark green body, black spots and inner tail)
Features(Dark gold rattle, spike and blinkers)
Additions(Black wheels with dark gold beak)
ACT2
Echoes ACT2 is a developed form of Echoes ACT1, gained during the battle with Yukako.
ACT2 takes on a more humanoid appearance but is much smaller than ACT1. It is fully clad in a shell-like armor decorated with metallic striped protrusions at the crotch and other places, the most prominent piece being a large high collar fused with shoulder weights with "S2" written on the back which covers the back of the head and the shoulders. ACT2's oversized head has a now revealed face, its metallic striped eyes, nose and small robotic mouth being revealed. It still has a long organic tail with a dark belly and bright back, and a detachable kunai-like stinger.
The series is known for alternating colors between media, the information presented below may or may not be canon.
Colored MangaAll-Star BattleEyes of HeavenAnime
Armor(Light green)
Features
(Golden and black boots, chest, tail, inner forearms and eyes)
Armor(Light green)
Features
(Yellow and black boots, tail, inner forearms and eyes)
Armor(Light green)
Features
(Golden and dark brown boots, tail, inner forearms and eyes)
Armor and Body(Olive green armor, body and tail)
Eyes(Yellow)
Features
(Saffron features and inner forearms, white kneepads and boots, dark gray inner tail)
ACT3
Echoes ACT3 takes on a completely humanoid form but still retains features from its previous ACTs, giving it an almost robot-like appearance. Its body is covered in multiple striped protrusions mimicking human muscles and several of them form a crest at the top of the head. ACT3 also has two X-shaped holes on the sides of the head. ACT3 now possesses a cloth wrapped around its waist similar to shorts with the number 3 printed on the front and keeps its boots. Its tail is now vestigial, a single long spike protruding from its behind.
The series is known for alternating colors between media, the information presented below may or may not be canon.
Colored MangaAll-Star BattleEyes of HeavenAnime
Body(Light mint green)
Eyes(Yellow)
Features(Dark green and chartreuse yellow)
Accessories
(Yellow knuckles and stitches, dark magenta print)
Body(Olive green)
Eyes(Yellow)
Cloth(Light green and yellow)
Features(Brown and saffron)
Accessories
(Yellow knuckles and stitches, magenta print)
Body(Light green)
Eyes(Yellow)
Cloth(Light green)
Features(Gold)
Accessories
(Golden knuckles and stitches, magenta print)
Body(Light gray)
Eyes(Bronze)
Features(Emerald green)
Accessories
(Golden knuckles and stitches, pale green print)
Personality
ACT1-2
ACTs 1 through 2 don't possess a full-fledged personality. They obey its master's command and sometimes let out a small growl.
Koichi develops Echoes ACT3 during his confrontation against Sheer Heart Attack when ACT2 proves too weak to battle the Stand.
ACT3 is now fully sentient and able to communicate with its master. ACT3 speaks politely when talking to Koichi, following his orders and referring to him as Master. However, he has a tendency to suddenly curse in English, in a manner seemingly inspired by rap music. In the original manga, its speech is often written in katakana to underline a mechanical tone.
Abilities
General
Echoes makes its first appearance during the battle against Keicho, though as an egg, it is immobile and cannot do anything.
In ACT1 form, Echoes is a long-range Stand. It is very weak, its punch failing to hurt Tamami,[2] and also slow. However, it has the longest range of all ACTs and can go up to about 50 meters from its user,[3] making it useful as a scouting Stand.
Although ACT2 is still physically weak, it now possesses a stronger and more versatile power than its previous form, making it more suited to direct confrontation. Foreshadowing the speed of ACT3, ACT2 also gains a massive increase in speed - fast enough to give the impression of disappearing into the air.
Unlike Echoes' first two forms, ACT3 has a much shorter effective range. It is extremely fast and noted to be stronger but is still no match in direct combat against even Stands like Killer Queen.
ACT1: Sound Generation
Echoes ACT 1 creating a sound on Kobayashi
Echoes ACT1 can write anything on any surface or person. If it is an onomatopoeia, typically in Katakana, a sound related to the onomatopoeia in question is produced. If it is a sentence written in Kanji, the words will influence the target's state of mind. For instance, Koichi could convince his mother, who was on the verge of suicide, to stop and trust him by using the sentence "Believe in me!" on her.[4] The sound and words are said to not really be heard but to be as if they came from inside the person.[2] The sounds vary in volume, but will increase the longer the sound is active and reverberates to a person more strongly if the sound is written directly on them.
The effect can be broken with enough willpower, as Yukako dispels the writing that Koichi puts on her.[5]
Making the sound of a train alarm
"Believe in me!" sound
"I hate you" sound
Sound of a telephone
ACT2: Sound Effects
“
Because she touched the door with the 'whoosh' on it... the sound became a real entity! The 'whoosh' turned into a real sensation and blew her away!
Touching the sound effect triggers an equivalent effect
Echoes' second form increases its sound abilities beyond its first form's capabilities. Echoes can write a sound effect on any surface. However, unlike ACT1, it is only able to shoot sound effects from its tail, limiting it to only one sound effect at a time. When the sound effect is touched, an effect related to the sound is produced, either affecting the person who touched it or the object which the words are inscribed on.
(ヒョオオ, Hyooo) - A strong wind is produced.
(ドグオン, Doguon) - The toucher is knocked back a great distance.
(ボョヨオン, Byoyon) - The object becomes elastic and bouncy.
(ジュー, Jū) - The object radiates heat and will burn upon contact.
(ドラララ, Dorarara) - An attack rush of Crazy Diamond-shaped fists attack the enemy (Eyes of Heaven only)
ACT3's signature ability, with which it applies a "freezing" or stopping effect by greatly increasing the weight of its target by punching it, typically adopting a fighting stance while joining the hands together while doing so and producing an aura. For example, Killer Queen's Sheer Heart Attack is forcibly sunk into the pavement by this ability, and, according to its user, the effects were as if there were 40-50 kilograms of weight on his left hand. The weight increases does have drawbacks; 3 Freeze can only affect one thing at a time, and the effect ceases if the target moves more than 5 meters away from ACT3. The closer the target is to ACT3, the heavier it feels.