Shock Waves
Undertale: A Bad Sans's Journey Through the MultiverseBiodata
| Feature | Value |
|---|---|
| Name | Shock Waves |
| Original Name | 冲击波 |
| Other Names | Blasters; “Bones Dog” is used as a nickname for summoned heads 3 116 160. |
| Type | Summoned magical cannon technique 1 117. |
| Users | Numerous Sans variants, including Murder, Killer, Insanity, Blue, and uv!Murder 1 24 33 66 105. |
| Function | Energy bombardment, aerial transport, containment, and utility work 1 60 61 116 160. |
| First Appearance | Murder summons several cannons around the human in Dusttale 1. |
Power Progression
These are documented enhancements and composite forms, rather than a named realm or rank system.
| Stage / Realm / Level | Chapter | Notes |
|---|---|---|
| Standard summoned cannons | 1 | Murder surrounds a stationary human with multiple cannons and orders them to fire. |
| Red, trait-dissociating blast | 47 48 | Murder channels red energy into an enormous cannon. Its blast removes half of a regenerating monster’s body and prevents the wound from healing by dissociating lust. The same power can dissociate determination. |
| Satsujin composite model | 78 | Combines Killer’s model and liquid determination with Insanity’s blood-splatter effects; used in a joint bombardment with Kyuuseishu. |
| Kyuuseishu composite model | 78 79 | Incorporates UKB’s Karma eye, ULB’s ▇▇▇-shaped fractures, and Agem’s golden flames. A fully charged Giant Shock Waves tears apart Kyuuseishu’s own Barrier. |
| Determination-strengthened output and durability | 107 108 | Errortale Sans sustains a greatly expanded barrage through injected determination. His strengthened cannon also withstands the resulting explosion while sheltering him inside. |
| Purple-code manifestation | 127 | Murder converts purple code into Shock Waves and fires at point-blank range without a windup. Killer’s repulsive force blocks the beams. |
Appearance
Shock Waves appear as floating skeletal dragon heads, with energy gathering inside their mouths before firing. Their size, eyes, markings, and ornamentation vary between users 9 33 106.
| Model / User | Distinguishing Features |
|---|---|
| Murder | Standard cannons have white-glowing eyes during bombardment; two special heads have unusual pupil colors 9 21. |
| Xx_FRESHSANS_xX | Cannons wear bizarre glasses; a later barrage is described as glasses-shaped 21 22. |
| Cross | Cannon covered in X markings 23. |
| uv!Murder | Purple-eyed heads 33. |
| Killer | Cannons several sizes larger than Murder’s during their Errortale confrontation 105. |
| Errortale Sans | Angular white skeletal dragon heads 106. |
| HyperDust | Rainbow-colored Shock Waves 139. |
- Giant Shock Waves is a larger form used by Murder, Insanity, and Kyuuseishu 60 66 79.
- Summoned heads can blink, glance at their users, and visibly respond to encouragement or commands 116 125 130.
Abilities & Skills
Summoning and Control
Users summon one or many cannons from thin air or the Void and direct their positioning, charging, and fire 1 35 66.
- Delayed firing: Murder mentally sets firing delays, then restrains Killer with Blue Bones as the blasts arrive 3.
- Held charges: uv!Murder keeps already charged cannons from firing while searching for Murder 35.
- Targeting: Cannons can lock onto an opponent and fire after their summoner has been distracted or restrained 35.
- Dismissal: Murder commands his mount to vanish after crashing into a cavern wall 61.
Energy Bombardment
Shock Waves discharge energy beams from their mouths, supporting direct attacks, beam clashes, and large-area barrages 9 33 66.
- Sustained fire: Murder’s hovering cannons pour out an ongoing tide of energy above his sea of bones 9.
- Beam clashes: Murder counters uv!Murder’s cannon, Killer matches Geno’s barrage, and Insanity contests an oversized Sonic.EXE clone’s mouth beam 33 66 96.
- Destructive output: Insanity’s fully charged bombardment defeats the oversized clone; the passage compares its energy to radiation on the sun’s surface 66.
- Protective interception: Classic Sans and Fell Sans pulverize falling rubble before it reaches unarmed humans 23.
Coordinated Attacks
The cannons are frequently combined with movement restrictions and close-range attacks.
- Murder and Killer aim to either side of the human, forcing a jump through the middle and creating an opening for ULB 9.
- Murder’s two special heads fly around Xx_FRESHSANS_xX and harass it with intermittent attacks 21.
- Classic restrains X-Chara with gravity before the group’s Sixfold Judgment barrage 26.
- Insanity fights at close range to keep enemies occupied while her cannons finish charging 34 66.
- Hardmode’s Super Invincible Big Windmill surrounds the target with cannons; she throws the human into their sights and pins him with gravity 80.
Flight and Recoil Propulsion
Shock Waves can carry riders through the air. Firing backward supplies additional propulsion 60 61.
- Mounted travel: Blue stands atop a giant cannon, while Murder rides smaller heads through unfamiliar terrain 24 60.
- Emergency acceleration: Murder fires at the pursuing Sonic.EXE, using the recoil to create a large gap between them 61.
- Multiple passengers: Killer01 summons a head that catches both her and Murder, then carries them toward the source of a regenerating shadow 130.
- Long-distance pursuit: Murder uses recoil to catch up with OuterDust and DLG 135.
Jaws, Containment, and Shelter
The summoned heads can close their mouths around people and hold them inside 11 108 116.
- Biting: ULB’s enormous blaster nearly encloses the human before snapping its jaws shut 11.
- Capture: Murder summons a cannon directly in Betty’s path and seals her inside its mouth 116.
- Corrosive attack: At Murder’s instruction, the captive-holding head converts energy into green stomach acid. Vampiric Bone Shards complete the attack 116.
- Shelter: Errortale Sans hides inside an unfired, tightly sealed cannon to survive his own devastating bombardment 108.
Utility Applications
The mouths and heads also serve purposes unrelated to direct combat.
- Smoke removal: Murder orders a Giant Shock Waves to inhale thick smoke, turning it into a makeshift vacuum cleaner 60.
- Demolition: A cannon destroys Murder’s prison-cell wall even though the illusion blocks Shortcut 118.
- Fertilizer production: Killer gathers bones and skeletons, then blasts them into fragments for fertilizer 160.
- Plant-growing container: Killer loads soil and materials into a head. Giant stalks grow through its openings, providing a route out of sealed Chaos Space 160.
Limitations
- Charging creates openings: Murder retreats before uv!Murder’s cannons finish charging; Insanity compensates by occupying opponents in close combat 34 35 66.
- Barrages can be dodged: Xx_FRESHSANS_xX evades Murder’s fully charged volley, and Betty exploits gaps in Errortale Sans’s initial firing pattern 21 107.
- Defenses can stop the beams: Nightmare’s tentacles block Sixfold Judgment without meaningful damage, while Killer’s repulsive force stops Murder’s code-generated beams 26 127.
- Damage is not guaranteed: The hedgehog confronting Insanity emerges unharmed from her lasers. The chaos-enhanced human also survives Satsujin and Kyuuseishu’s joint bombardment 57 78 79.
- High output is costly: Murder finds trait-dissociating energy especially exhausting when fired through Shock Waves. Errortale Sans’s expanded barrage consumes excessive magic as his body melts and his soul destabilizes 48 107.
- Some special models strain their users: Betrayer worsens her existing injuries by using two special Shock Waves 75.
- Cramped spaces restrict use: Murder substitutes close-range air-cannon recoil in a sewer because Shock Waves would leave too little room to dodge 124.
- Illusion-stage interference disrupts commands: Near the circus stage, Murder’s cannon ignores him and shoots clowns, multiplying the attackers. Normal control returns after he leaves the stage’s influence 125.
- Recoil can cause collisions: Murder and his mount hit a wall during their escape from Sonic.EXE 61.
Other Documented Users
Beyond the users detailed above, the technique appears in the following hands:
- Sanstrosity — summons blasters with their backs facing Murder and Killer; Murder wonders whether they will attack through recoil 16.
- Swap Papyrus — participates in the group’s Sixfold Judgment attack 26.
- Betrayer — uses two special Shock Waves at severe physical cost 75.
- Green — targets a human with a barrage described as a move many Sans know 82.
- Geno — produces barrages comparable to the original Sans despite possessing only a small portion of a soul, aided by previously injected determination 96.