This event occurs when a hero gets mad, usually when his friend is tortured or killed by the villain. A perfect example is Goku: he becomes a Super Saiyan because of anger due to Krillin's death, caused by Frieza. There are more several reasons that an hero can get mad.
This case can be compared with Heroic Breakdown, but they mainly regain their composure in more faster rate due to the said composure were tested by the following reasons:
Fed up of being the servant of a villain
Being angry with themselves, for not saving a friend (either originally wanted to but failed or otherwise).
Throwing tantrum or reaching a breaking point.
Also comparable to Releasing Stress.
Shadic the Hedgehog rages at Scourge the Hedgehog who has savagely beaten up and injured Techno the Hedgehog in a cold blood, causing his rage to transform himself into a Initial Kyuubi Form under his rage.
Nothing comes out of domination! Nothing! No Good, No Bad, NOTHING! How can I do it now?! How can I when it's at the cost of love?! Of her?! I loved her! I TRULY LOVED HER! And what did this do?! IT BROKE HER HEART! (Nolana: Enough Cathmor! Don't you remember who you are?! She knows now! And now that she knows, you can never win her back!) QUIET! I hurt her thanks to you! I'll TEAR YOUR BONES TO PIECES!
You call yourself a HUMAN! (punches Tomiko in the face to ground) I said multiple times they were real, and you STILL CALL THEM FAKE? STLL?! WHAT'S WRONG WITH YOU?!! I showed photos of them with me! vhs-es! THEIR HANDWRITING FOR CRYING OUT LOUD! (Rosario (shocked): Please tell me you don't mean the photos I found in garbage.)(a shocked Lolita gets even more mad) YOU DISREGUARDED ME?!?!? (goes quiet for a minute) so it was all true, everyone was right about you. YOU'RE A RUTHLESS ARROGANT BULLY! To think I dismissed what everyone said about you! EVEN MY OWN SISTER! I'm DONE WITH YOU! If I even see you again, (crushes her cell phone) I'LL BEAT YOU TO DEATH!
~ Lolita raging at Tomiko Hasegawa for calling her sister and her team fake.
You will pay for what you have done to my friend Techno the Hedgehog, Evil Monster, YOU MAKE ME VERY ANGRY BECAUSE OF YOU, THIS TIME YOU WILL PAY FOR YOUR SAVAGE ATTACK ON ONE OF MY FRIENDS TO MY SIDE!! (Kurama appears inside of Shadic the Hedgehog) I'M GONNA KILL YOU!!!!
~ Shadic the Hedgehog rages at Scourge the Hedgehog as he turns into hid Initial Kyuubi Form
Shadic the Hedgehog turns into his Initial Kyuubi Form after raging at Scourge the Hedgehog who has savagely injured Techno the Hedgehog in a cold blood.