"A powerful Ki-laced punch!"
Just like Saiyan Spirit, Bardock charges his energy on his right hand but its appearance is that of a flame ki, he rushes toward his opponent. Once his hand hits him, Bardock will flip backward and charges and hit his opponent with a powerful flame Energy Wave.
Appearances in video games
Brave Heat was named and first appeared in Xenoverse 2 as Bardock's Ultimate Skill in his Battle Suit 2 Skillset.
"Charges at the opponent. If the charge hits, the character will fire a powerful Ki Blast."
As part of the Masters Pack DLC, the Future Warrior (Xenoverse 2) can learn this Ultimate Skill by completing School Quest: "Lesson 3" of Bardock's Training. Unlike Saiyan Spirit, it can be used by the Future Warrior regardless of race. Interestingly, in the plot description of Lesson 3, it is mistakenly referred to as Tyrant Lancer (the name one of Bardock's Super Skills), despite the skill being listed as Brave Heat in the Lesson's Basic Reward section.