They were first mentioned by Fei and Wonderbot in the episode 31, where they warned the other Raimon members that this team is much more powerful than all of the Protocol Omega's teams and Zanark Domain. Then, Dr. Crossword Arno appeared and said they are the ones that Raimon needs to defeat in order to bring back soccer. Later, Sakamaki Togurou, the coach of the team, appeared near Toudou to say Perfect Cascade was about to arrive to the Cretaceous era. Near to the end of the episode, Rei Rukh, the captain of the team, appears in the same cavern as the one in which Rockstar lives.
In the episode 32, Rei Rukh appeared again on the top of a hill and teleported Raimon to a soccer field. They launched the Plan Fourteen, which was destructing Raimon. Before the debut of the match, Rei told Raimon Rockstar's death would prevent them from Mixi Maxing her with one of the players, and that their chances to win were zero. Perfect Cascade won the match by a devastating score of 19-0, then Rei tried to mind-control them, but Toh-chan called a rampage of dinosaurs which allowed Raimon to leave the field.
In the episode 33, Perfect Cascade challenged Raimon again and launched Plan Sixteen, which was to beat Raimon. Again, Rei told them their chances to win were near zero. But after the kick-off, Raimon's players immediately used their Mixi Maxes, at which Rei answered it was useless. He used Plasma Shadow, an artificial keshin, and stole the ball, then passed to the others players who did the same. Due to Torb's and Nanobana's keshins, Raimon succeeded to defend the goal, but Sakamaki ordered Rei to use Optical Fiber, which they did. Perfect Cascade scored several goals, while Raimon's unique try to score had failed. Then, dinosaurs arrived to the field, disturbing the match and Raimon's players, but not Perfect Cascade's who were avoiding these. They shot at them and succeeded to make the dinosaurs back to normal, in which Sakamaki answered he could use more of these.
The match continued in the episode 34. Rei told Raimon the match was now an infinite loop, but they couldn't give up. They scored another goal due to Shoot Command 20. Then, Sakamaki activated his bracelet, which made Death Horn come to the match. As he was about to hit Fei, Big intervened, in which Sakamaki said it was pathetic from him. Because of Kinako's cheers to Fei, he revealed his keshin, Kousoku Toushi Robin, and succeeded his Mixi Trans with Big. But Rei continued saying it wasn't enough to score them, in which Fei answered by using his Keshin Armed, and scored two goals with Ouja no Kiba and Extreme Rabbit, due to Tenma's help.
Raimon started to use their Keshin Armed instead of Mixi Maxes, and Torb succeeded to Mixi Max with Toh-chan. However, Sakamaki commanded Rei to use the "Normal Dive Mode", instead of the "Practise Mode" they had been playing with. This made the players being faster and stronger, passing through Keshin Armed and hitting the players who owned these. Sakamaki laughs, but he suddenly became interrupted by Toudou's call, telling him to go back to El Dorado's base, as something was happening. Later in the episode, Sakamaki told Rei Rukh that El Dorado's base was under attack by the Second Stage Children, and that he needed Perfect Cascade to play with all their power. They arrived at the headquarters at the end of the episode, to protect the elders from SARU. He challenged Perfect Cascade to beat Matsukaze Tenma as they weren't to able so far, in which Rei Rukh answered he was wrong, as it only was a question of time.
King Arthur's Era[]
In the episode 37, Rei Rukh appeared and revealed himself to be the Dark Dragon's Knight who controlled Master Dragon. Then, the rest of the team appeared, without Sakamaki Togurou this time. After the beginning of the match, Rei told the players to change their mode into Hyper Dive Mode, in which they did. The players' eyes disappeared, letting new ones appear, which are their true eyes, which shocks Raimon's players. The two forwards started advancing through the field, passing through Raimon's defense, and the episode ended.
In the episode 38, the two forwards of Perfect Cascade continued advancing through the field and scored the first goal for their team. The match continued the same way, with Perfect Cascade easily leading the match while Tenma was having doubts about him being the captain. The second half started with a score of 2-0 for Perfect Cascade. As Fei was advancing through the field, Rei Rukh and the rest of the team used their Keshin, Plasma Shadow, and then used their Keshin Armed together at the same time. The match became totally led by Perfect Cascade, whose the forwards scored a third goal, by using Shoot Command 20 again. However, as Kinako and Tenma succeeded to Mixi Max respectively with Master Dragon and King Arthur, the match turned in favor of Entaku no Kishidan. Tsurugi, along with Nishiki, Kinako and Fei, scored a goal. It ended with 4-3 for Entaku no Kishidan. Then, Perfect Cascade's members all retired.
Ragnarok Tournament[]
Perfect Cascade was mentioned in episode 40 during El Dorado Team 03's meeting. Kirino asked Rei Rukh, who had joined the team too, if his team had faced Second Stage Children's teams once. However, he answered they didn't, thus letting Tenma's team with no indication about the adverse teams' style of play.
This is why they don't show any emotions while talking, and all speak monotonely. However, they were shown to have slight emotions while playing in the different matches.
Perfect Cascade's players are known to have three different modes:
The Practice Mode (プラクティスモード, Purakutisu Mōdo), in which they play as if it was a simple practice. However, as seen in the Inazuma Eleven GO Chrono Stone anime, they're really strong opponents even when playing in this mode, as they can easily surpass Mixi Maxes.
The Normal Dive Mode (ノーマルダイブモード, Nōmaru Daibu Mōdo, dub: Normal Mode), first used in the episode 34. The players gain even more strength and speed, and are shown to be able to surpass Keshin Armed.
The Hyper Dive Mode (ハイパーダイブモード, Haipā Daibu Mōdo, dub: Hyperdrive Mode), first used in the episode 37, which is their strongest mode. In this mode, they reveal their form and voice, making it clear they are androids.
In the game, Hyper Dive Mode counts as a Mixi Max, and Mixi Maxing a member of Perfect Cascade with any other character will always result in Hyper Dive Mode.
In Inazuma Eleven GO Galaxy, this was changed so that Mixi Maxing Perfect Cascade members would only result in Hyper Dive when done with players from either Soccer Robots or Karakuri Bingmayong, a reference to all three teams being some form of automaton.
Interestingly, the initials of this mode are a reference to high definition.