Rage is when a monster has taken enough Physical Damage and reacts by becoming much more aggressive. Many monsters signal that they are entering an enraged state by roaring but some, like Yian Kut Ku and Gypceros, jump up and down. Those monsters that don't display still have signs that they are enraged, such as markings and/or huffs of smoke coming out their mouths. The attack, defense and agility for each monster significantly increases (to the point that some will one hit KO enemies), as well as certain tolerances (in the case of Diablos and Monoblos, they become unaffected by Sonic Bombs while enraged). It's even possible to use Pitfall Traps on an enraged Rajang or Nargacuga, who normally avoid Pitfall Traps.
How much the stats are increased depends on the monster. Monsters usually get enraged more often when they are close to death, a famous example being the Diablos. Rage can also be induced by waking certain sleeping monsters, and in the case of Yian Kut-Ku, by stunning it with a Sonic Bomb or explosive, or occasionally by breaking a body part (a Shogun Ceanataur becomes 'locked' into Rage when one of its claws is broken).
Most of the time, if a monster is in the middle of an attack and a hunter drives them into rage, they will stop that attack and do the Rage state indication.
These are the increases in attack, defense and agility that some monsters experience in Rage state.
|Yian Kut - Ku||+120%||+100%||+130%|
|Blue Yian Kut - Ku||+130%||+100%||+140%|
|Lao - Shan Lung||+150%||+120%||+150%|
|Ashen Lao - Shan Lung||+150%||+120%||+150%|
|Monster||Signs of Rage||Notes|
|Yian Kut-Ku||Huffs orange smoke from its beak and ears open up.
Will hop up and down angrily when entering rage.
|Immune to sounds. Charges more often.|
|Yian Garuga||Huffs orange smoke from its beak. Will hop up and down angrily when entering rage.||Able to avoid Pitfall traps with its "Trap-avoiding slyness." Performs Death-Flip more often.|
|Cephadrome||Huffs sand.||Immune to sonic bomb.|
|Plesioth||Huffs white steam from mouth||Comes out of the water more often.|
|Gypceros||Huffs purple poison gas and eye rings glow orange or green species wise and their head crests will flicker rapidly. Will hop up and down angrily when entering rage.||Uses the Flash more often.|
|Rathalos (and Subspecies)||Huffs smoke. (In MH3, mouth will constantly house a lit flame). Roars when entering rage.||Charges more often. Unless used with experience, Flash Bombs are ineffective and Pitfall Traps do not work as often as well.|
|Rathian (and Subspecies)||Huffs smoke. (In MH3, mouth will constantly house a lit flame). Roars when entering rage.||Launches backflips more often.|
|Monoblos||Huffs black smoke and red markings appear on its 'Crown'.
Will taunt with black smoke coming out of its mouth when enraged.
|Immune to Sonic Bombs.|
Huffs black smoke. Will taunt with black smoke coming out of its mouth when entering rage.
|Immune to Sonic Bombs.|
|Gravios||Huffs white smoke. Gives a short roar when entering rage.(Different roar from when he first spots you.)||Uses Heat Ray attack more often.|
|Tigrex||Huffs smoke, veins on arms and neck glow red, eyes turn bright red, and drools. Jumps back and roars when enraged.||Becomes faster and easier to get its teeth stuck on walls. Lowers defense in rage.
(Subspecies) Can use super roar when enraged.
|Congalala||Nose inflates and becomes red. Butt becomes bright red. Breathes fart fumes that will set you on fire. Stands on hind legs and farts when entering rage.||Will fart at nearby Hunters while being stuck on the Pitfall Trap. Farts more in rage.|
|Kirin||Mane glows intensely and white electric waves surround it.||Hurts any hunter close enough to it. Speed increases greatly.|
|Blangonga/Copper Blangonga||Huffs icy or sandy smoke, species-wise and the cheeks will change color. Roars when entering rage.||Speed increases, digs,back-kicks and ice breath (Blangonga only) more often.|
|Akantor||Certain body parts flare red and huffs smoke. Eyes become bright red. Roars when entering rage.||Immune to Sounds.|
|Ukanlos||Huffs white smoke. Roars when enraged.||Immune to Sounds.|
|Kushala Daora||Huffs smoke. Roars when entering rage.||Much more airborne in Rage.|
|Teostra||Huffs smoke. Roars when entering rage.||Flamethrower range doubles in length. Able to perform Fire Claw Attack.|
|Chameleos||Huffs green smoke that reveals its position and boss battle music plays. They will stand still and start moving their neck in an odd manner, as if searching for more attackers, when entering rage.||None.|
|Daimyo Hermitaur||Foams white bubbles from mouth.||Does water blast more often.|
|Shogun Ceanataur||Foams white bubbles from mouth and claw length doubles. You will hear a "Zing!" sound when he is enraged. Its actually the Shogun extending his claws.||Claws open up and double in length. Stays in its enraged state permanently until captured or slayed if one or both claw has been broken. Does the Scythe Clothesline more often.|
|Bulldrome||Huffs white smoke.||Shakes head a lot right when it gets out of rage.|
|Rajang||Becomes almost completely gold; Back hair stands up. Golden Rajang's fur stands up and it's surrounded by its Electric Aura. Jumps back suddenly and change in colour when entering rage.||Can only be trapped with Pitfall Traps while in raged state. The HR9 Golden Rajang cannot be trapped with Pitfall Traps when he is in rage, because he will merely jump out of it and cause it to vanish.|
|Khezu||Huffs white static smoke. Sniffs the ground and is motionless when entering rage.||Much Faster in rage, Thunder surrounds it on most of its Jumping Attacks.|
|Basarios||Huffs purple smoke. Short roar when entering rage.||Gains ability to shoot fireballs. May do the heat ray similar to the Gravios' heat attack, and beware because it moves its head side-to-side when it shoots the heat ray.|
|Lao-Shan Lung||Walks faster||None|
|Shen Gaoren||Walks faster||None|
|Fatalis||Huffs white smoke.||Goes into Armor Mode (Crimson & White only).|
|White Fatalis||Red markings and static on body.||Goes into Armor Mode with enough damage dealt.|
|Nargacuga||Glowing red eyes and the tail grows spikes. Jumps suddenly with tail spikes showing and quickly roars. (Note: Do not mistake Tail Slam for Rage state!)||Can be trapped with Pitfall Traps. Tail can only be cut in Rage state.|
|King Shakalaka||BBQ fire gets larger and shoots fire balls from its BBQ spit.||Speed and attack power increase.|
|Hypnocatrice||Huffs light blue smoke. Back feathers stand. It will raise its head and then look straight at the hunter, with the tail standing up and making a screechy sort of noise when entering rage.||Speed increases, performs Triple Sleep Balls attack and Jump Kicks more often.|
|Yama Tsukami||Eyes glow Yellow.||Uses the Wind Tunnel more often, right after the whisker grab.|
|Espinas||Soft pink/orange color spreads over its back and the top part of its wings.||Gains vulnerability to physical attacks.|
|Akura Vashimu||Blood Colour changes from blue to yellow.||Gems on back and claws glow.|
|Great Jaggi||Huffs white smoke.||Will body slam more often.|
|Great Baggi||Huffs white smoke.||Will body slam more often.|
|Qurupeco||Huffs white smoke and the tail becomes red.||Will be more likely to summon boss monsters.|
|Barroth||Steam rises from its cranial vents.||Charges quicker and charges more.|
|Uragaan||Huffs black smoke.||Firey cloud will be used instead of sleep cloud.|
|Deviljho||Huffs dragon element, body expands, old scars show up.||Chest and elemental defense becomes weaker. Gains ability to use dragon breath.|
|Royal Ludroth||Huffs water.||Uses water spit more often.|
|Gobul||Huffs water, puffs up body.||It's back will deflect any weapon with green sharpness or less.|
|Agnaktor||Huffs orange smoke.||Will use the 360 fire beam.|
|Huffs blue smoke with thunder around its mouth, dermal spikes glow white.||Uses thunder attacks more.|
|Barioth||Eyes glow red.||Moves faster.|
|Gigginox||Upper body turns black. Upper body turns red (Subspecies).||Its body turns more strong,but his tail turns weak|
|Ceadeus||Neck and chest glow red.||Only occurs in the second part of the hunt.|
|Alatreon||Body glows white and emerald (in some areas).||It will also huff the element of the attack it will use next (i.e. electricity for a thunder attack, flames for a fire attack, etc.).|
|Electricity/Dragon glows brighter and surrounds it's body, enlarged spikes, attacks faster and becomes stronger.||Zinogre will gather energy in order to increase its attack power causing a thunder-like blast around its body. Zinogre's defence lowers.|