"The Heated Battle" ("Pertarungan Hangat") is the 11th episode of the first season of BoBoiBoy Galaxy and the 11th episode overall in the series.
The episode begins with Admiral Tarung allowing BoBoiBoy’s gang to take the Toughness Test as they are clear that the consequence for failing is expulsion from TAPOPS. The location of their Toughness Test is Planet Volcania, a planet filled with active volcanoes and rivers of molten lava. Koko Ci explains that it's a simulation in which their task is to retrieve a Power Sphere atop a volcano. Gopal expresses relief that it's only a simulation, prompting a sly grin from Tarung.
There are 2 teams involved: Team A and B, Team B being BoBoiBoy’s gang. Team A remains unnamed but are revealed to already be on Planet Volcania. Ochobot is called to the room to teleport Team B to the planet and their progress is monitored by a drone-like robot Tarung sends after them.
As they take in their new surroundings, BoBoiBoy spots the volcano where the Power Sphere is located in the distance. They flee from erupting gas geysers and reach a lava river at the volcano base, where Yaya uses her gravitational powers to lift some rocks protruding from the lava so BoBoiBoy and Gopal can get across. Unbeknownst to the others, Fang notices two shadowy figures in the distance and follows them instead.
Gopal is about to jump across but doesn't see the lava about to erupt under him. BoBoiBoy pushes him out of the way and on to the other side, getting burned in the process. BoBoiBoy's Power Band starts glitching after coming into contact with the lava, allowing Tarung to reveal that the environment is real, even though the tests are usually conducted via simulation, and invites them to drop out and fail if it's too dangerous. After chiding Gopal for wanting to quit, they notice that Fang is missing. Tarung tells them that Fang is already ahead of them so they continue to the volcano. They reach the summit and find the Power Sphere but are ambushed by Fang. He reveals that he is in fact, a member of Team A—not Team B—and that their goal is to prevent Team B from retrieving the Power Sphere. Fang introduces the other two members of Team A he saw earlier as Sai and Shielda, the former demonstrating his skill by throwing his shield to shatter several rock formations and recalling it like a boomerang.
His skill amazes BoBoiBoy and Gopal, their behavior only making all of Team A dub them as weak and easy targets. Outraged by Fang’s betrayal, Yaya and Ying attack Team A, only for Shielda to block, absorb and reflect their attacks. Koko Ci attempts to warn them about Shielda's power but Tarung interrupts and scolds him for exposing the information. Gopal discovers that Koko Ci was telling the truth and that Shielda’s shield can deflect both physical and verbal attacks.
Ying is injured by Sai's shield while distracted trying to help Gopal. Yaya becomes furious and lifts up all of the nearby rocks to hurl at Sai and Shielda, which they defend against with their shields. Ying convinces BoBoiBoy to leave them and get the Power Sphere as fast as possible to end the test. BoBoiBoy transforms into BoBoiBoy Wind and flies towards the volcano, pursued and attacked by Fang on his Shadow Falcon. Shielda gains some ground on Yaya despite her relentless rock throwing and manages to knock her out of the air. Sai's shield, fast enough to be unaffected by Ying’s slow-mo field, collides with the ground, creating an explosion that knocks out both girls. Wind and Fang are shocked to see them defeated, the latter asking him to surrender so that they will no longer get hurt. As Fang causes Wind to crash into the volcano floor Koko Ci implores Tarung to stop the test but he refuses.
Sai and Shielda show BoBoiBoy that the rest of Team B has been defeated. They decide to finish him too, but Fang insists that what they have done is victory enough, making them mock his sympathy towards the “weak” Earthlings. Feeling the urge to prove who are the weaker ones, BoBoiBoy finds the strength to stand and suddenly transforms into BoBoiBoy Fire. He attacks Team A with fire-based moves and dodges Sai’s incoming shield. While he’s distracted, Shielda slams him with her shield into a wall as Fang realizes they are going too far and yells for them to stop. However, Fire punches it away and later releases a Red-hot Flaming Punch, which Team A is unable to dodge.
The rest of Team B wake up in time to witness the fight as the volcano begins to quake. Koko Ci realizes that the volcano had become unstable due to BoBoiBoy Fire's attack. As Yaya and Ying go to the Power Sphere, Gopal begs Admiral Tarung to abort the test as the volcano is about to erupt.
Fire laughs victoriously and asks Team A who the weakling is now. Fang and Shielda yield but Sai throws his shield at full force towards Fire—who effortlessly dodges it—then diverts its direction to hit him from behind. Amazingly, Fire catches the shield like it’s nothing, ignites it and hurls it back at Sai. Before it reaches him, a teleportation portal opens and it turns out that Tarung had grabbed the shield with his teeth. Tarung announces that the test is over, relieving Team A. Fire argues that Team A has crossed the line before Tarung and Ochobot help him to calm down to revert back to normal. More rocks fall in the area so Koko Ci calls out to Yaya, Ying and Gopal. Everyone enters the portal and makes it safely to TAPOPS Space Station just as the volcano erupts, sending out a shockwave that disables the camera droid left there.
BoBoiBoy apologizes to Team A for not being able to control himself. They also apologize and admit they went too far and Sai praises BoBoiBoy’s outstanding combat skills. Tarung on the other hand scolds them for failing to retrieve the Power Sphere, meaning they now face expulsion. Gopal interrupts and reveals the Power Sphere that they obtained thanks to Ying's plan. Shocked and elated, Tarung proclaims that BoBoiBoy and his friends have passed the TAPOPS Toughness Test.
- Koko Ci
- FireBot (Debut)
- Sai (Debut)
- Shielda (Debut)
- When Koko Ci points out the members in Team B, he excludes Fang, which is a hint that Fang is in the other team.
- BoBoiBoy Fire shouldn't technically be a new element as stated by Gopal because BoBoiBoy already unlocked and used this element in BoBoiBoy Season 3 and BoBoiBoy: The Movie. Furthermore, at the beginning of the series, the Space Pirate's readout of BoBoiBoy reveals that he had the potential to have seven different elemental forms.
- An easy theory is the fact that BoBoiBoy Galaxy being a soft reboot and the elemental powers are to be reintroduced to new audiences who have not seen the original series.
- An in-universe theory is that Gopal assumed BoBoiBoy Fire was a new element due to the change of clothes and the fact that he was seeing the battle afar. Fang and Yaya look like they recognize BoBoiBoy Fire. It is reasonable for Koko Ci to see BoBoiBoy Fire as a new element as he did not see him in battle during the events of The Movie.
- Another in-universe theory is that Gopal meant “new” in the sense that it was another power in addition to the basic three that they hadn’t seen in a long time, rather than a power they’d never seen before.
- Although lava is not technically fire, when BoBoiBoy is burned by the lava eruption, his Power Band glitches and absorbs the fire element.
- However, since BoBoiBoy and his friends are on an alien volcanic planet, the lava there is likely to have the same properties as Fire.
- Near the end of the episode, Gopal has his left arm on his back for a period of time, which shows that he, Yaya and Ying have gotten the Power Sphere.
- Since the original series, BoBoiBoy's transformation into BoBoiBoy Fire has been speculated to be caused by stress and/or anger. This theory is reinforced in this episode when BoBoiBoy, enraged at Shielda's comment calling him and his friends weak, transforms into BoBoiBoy Fire.
- The scene when BoBoiBoy Fire catches Sai's shield that is thrown towards him and he throws it back to Sai is similar to the scene when Bucky catches Captain America's shield and throws it back to him in "Captain America: The Winter Soldier".
- This episode gained 1 million views within 10 hours and 2 million views within 24 hours, setting a new record in Monsta channel.