They say that the brain generates enough electricity to light a lightbulb. In the world of fiction, the more activity occurring in it, the more the brain is capable of. When the brain possesses Psychic Powers in one form or another, powers designed for raw offensive applications are probable. In this case, it is the power to channel and fire raw psychic energy in the form of a blast.
Psi Blasts are most commonly fired from the head, a Pstandard Psychic Pstance used as a means of focusing the raw psychic power and aiming it like cross-hairs. It might not even be visible, the battle of the minds happening exclusively in the psyche.
- The DCU: Jason Praxis is a police detective with psychic powers, one of his abilities being able to project psionic force bolts that affects a victim's mind so as to cause the victim pain or knock them unconsciousness.
- Pictured above is Jean Grey of the X-Men. Her incredible telepathic and kinetic powers can be manifested in the form of concussive psi bolts or waves of energy.
- Almost every significant psychic in Marvel from M.O.D.O.K to Professor X, can unleash a devastating psychic blast that bypasses most armour and overloads the brain of the victim - causing unconsciousness or even death. This is one of the few things that works on the Nigh Invulnerable Juggernaut.
- In Pokémon Detective Pikachu, Lucy's Psyduck unleashes a blast of psychic energy when it gets headaches; these manifest as energy waves that radiate from it.
- The Demolished Man: Basic Neuro-Shock is a newly-developed psychic attack that knocks the target unconscious. Powell implies that it's a technique only taught to top-level Espers.
- Telzey Amberdon: Human telepaths like Telzey have the power to launch psychic bolts, and the ability to shield their minds against them.
- The Lone Wolf series has several variations. The earlier series has Mind Blast and Psi-surge which mechanically just increase your fighting skills. But if Lone Wolf has the Grandmaster skill of Kai-surge and has advanced sufficiently in it, he can focus the power to unleash a Kai Blast or Kai Ray that does direct damage to an enemy's health with the drawback that he takes some damage from the strain.
- In the Star Trek: Deep Space Nine episode "The Jem'Hadar", Sisko, Quark and Eris were taken prisoner by the Jem'Hadar as part of a Dominion plot. Eris has a macguffin that blocks her psychic powers. When Quark removes it, Eris uses psychic blasts to free Sisko and Quark and even take out some of the titular aliens. Only it was a lie, she's really working for the Dominion and the MacGuffin was fake.
- In Dungeons & Dragons, Mind Flayers are known for their Psychic Blast attacks, which is a powerful blast of psychic energy that they project in a cone-shaped area in front of them. In older editions it was merely a stun attack with a long duration, but as of 4th Edition it also deals damage. Psyonicists have also traditionally been able to learn it as a psychic power.
- Psykers in Warhammer 40,000, have various ways of dealing death and destruction. But for those with the Telepathy discipline - there's Psychic Shriek where the Psyker unleashes a blast of mental energy that flays the victim's mind and body with psychic resonance.
- In the original The Bard's Tale Trilogy, Mangar's Mind Blade and Mind Blast spells are described as this, though the game didn't differentiate between psionic damage and regular physical or elemental damage.
- In every Dragon Age game so far, Mind Blast is a common spell that lets the caster hit all surrounding enemies with a wave of telekinetic energy emanating from their head. Its main purpose is to leave any melee attackers stunned long enough for the mage to escape to a safe distance again. It is also useful for flushing out stealthy rogues, who cannot be targeted while invisible, because Mind Blast doesn't need to be targeted and cancels the rogues' stealth if they're successfully stunned.
- Mass Effect: Biotics have many varieties of this ability. Anything from concussive blasts to giving enemies seizures.
- Earthbound has multiple psychic attacks to use, most of them are element based. However some of the more powerful attacks manifest as a colossal explosion of energy.
- Pokémon: There are a few Psychic-type moves that fit this description.
- Psybeam is a beam described as a peculiar ray of psychic energy.
- Max Mindstorm is a massive beam of circular psychic energy that creates a huge pillar of light at the point of impact.
- One of the plot-relevant psychic abilities Raz learns in Psychonauts is psi-blast, taught to him by Sasha in his mind The Shooting Gallery. Psi-blasts are described as raw negative emotions (mainly the will to attack) and expel them in the form of a red laser that works as a long-distance attack. After getting permission to learn psi blast from Ford Cruller with a learner's permit, Raz can use the power outside of his mind with the Marksmanship merit badge.
- The later three Wizardry games had the Psionic class, which was a form of spell caster embodying this trope. Mind Blast was one of their signature spells.
- The Yuri Clones in Command & Conquer: Red Alert 2 and the expansion have the ability to unleash a psychic blast through the deploy command which tears apart any nearby infantry including your own. Yuri Prime in Red Alert 2 and Yuri's Revenge skirmishes have the same ability with a shorter cool down with the added benefit of not harming friendly infantry.
- Kirby: Planet Robobot: one of the new copy abilities for Kirby, ESP, lets him create blasts or spheres of electricity with his mind.
- Azure Striker Gunvolt: the Final Boss, Nova, has simply Psychokinesis as his Adept ability, compared to the more divergent abilities of other adepts in the game. He mainly uses it to create spheres or rings of mental force in order to hit Gunvolt from a distance. His sheer raw power compared to other Adepts lets him become a formidable boss.
- Starcraft I: Tassadar is unique in that he has all the High Templar's spells but also has a psionic attack (actually called Psi Blast).
- Adventures of the Galaxy Rangers: Psionic blasts were one of the things Niko could do with a badge charge. However, it drained the charge quickly and was nowhere near as potent as her teammate Zachary's Arm Cannon.
- One of Lexi Bunny's main superpowers in Loonatics Unleashed is the ability to collect pink psionic energy in the form of "psi-balls" from the top of her head. In the atmosphere or vacuum of space, this power usually manifests as an explosive beam of pink energy, but underwater, the Brain Blast disperses into a concussive wave attack, which unfortunately runs the risks of hurting Lexi herself.