One Hit Kill

One-Hit Kill is a term describing a matchup where the opposing unit is instantly killed even at full HP. The ability to do this may be affected by defense or weakness.

All listed OHKs below use base damage taken (IE the Infantry takes 95% from the Heavy Tank in Super Famicom Wars). The Game Boy Wars 3 ones assume the unit won't take damage if ambushed, and use full HP numbers with fractions not being omitted before terrain and other defense boosts are applied.

Super Famicom Wars

All of these require luck damage or a minor attack boost, though minimal luck damage is required for the 99% matchups.

Infantry:

• Heavy Tank (95%)
• New Model Tank (95%)
• Rocket Launcher (95%)
• Train Gun (99%)
• AA Tank (95%)

Mech:

• Train Gun (99%)

Light Tank:

• Heavy Tank (95%)
• New Model Tank (99%)

Recon:

• Heavy Tank (99%)
• New Model Tank (99%)
• Train Gun (95%)

APC:

• Heavy Tank (99%)
• New Model Tank (99%)
• Train Gun (95%)

Supply Truck:

• Medium Tank (95%)
• Heavy Tank (99%)
• New Model Tank (99%)
• Artillery (95%)
• Rocket Launcher (95%)
• Train Gun (99%)

Artillery/AA Artillery (both have the same defense):

• Heavy Tank (99%)
• New Model Tank (99%)
• Train Gun (95%)

Rocket Launcher/AA Missile Launcher (both have the same defense):

• Medium Tank (95%)
• Heavy Tank (99%)
• New Model Tank (99%)
• Train Gun (99%)

AA Tank:

• New Model Tank (95%)

Bomber:

• Fighter (95%)

Lander:

• Battleship (95%)
• Submarine (95%)

Game Boy Wars 3

(Bold matchups are still OHKs on Harbors assuming the unit is at minimum Initiative, albeit attacking at a distance if feasible.)

Grunt:

• Commando (10)
• Convoy+ (10)
• Buggy (10)
• Humvee+ (10)
• Anti-Air Tank (17)
• Mercenary Anti-Air Tank (21 1/2)
• Artillery+ (12)
• Rocket Launcher (12)
• Rocket Launcher+ (14)
• Attacker (11 2/3)
• Lite Attacker (13 3/4, 10 5/12)
• Lite Bomber (11 2/3)
• Gunship (13 3/4, 10 5/12)
• Gunship+ (13 3/4)
• Transport Helicopter+ (10 5/12)
• Aircraft Carrier (Large) (21 1/2)
• Aircraft Carrier (17)
• Lander (16 1/2)

Bazooka:

• Anti-Air Tank (12 1/7)
• Mercenary Anti-Air Tank (15 5/14)
• Rocket Launcher+ (10)
• Lite Attacker (10 5/16)
• Gunship (10 5/16)
• Gunship+ (10 5/16)
• Aircraft Carrier (Large) (15 5/14)
• Aircraft Carrier (12 1/7)
• Lander (11 11/14)

Commando:

• Anti-Air Tank (10 5/8)
• Mercenary Anti-Air Tank (13 7/16)
• Aircraft Carrier (Large) (13 7/16)
• Aircraft Carrier (10 5/8)
• Lander (10 5/16)

Work Car/Humvee (both have the exact same Defense values, assume Humvee for Bolding):

• Anti-Air Tank (12 1/7)
• Mercenary Anti-Air Tank (15 5/14)
• Rocket Launcher+ (10)
• Attacker (10)
• Lite Attacker (11 11/14)
• Lite Bomber (10)
• Gunship (11 11/14)
• Gunship+ (11 11/14)
• Aircraft Carrier (Large) (15 5/14)
• Aircraft Carrier (12 1/7)
• Lander (11 11/14)

Supply Truck:

• Anti-Air Tank (12 1/7)
• Mercenary Anti-Air Tank (15 5/14)
• Rocket Launcher S (10)
• Attacker (11 2/3)
• Lite Attacker (13 3/4, 10 5/12)
• Lite Bomber (11 2/3)
• Gunship (13 3/4, 10 5/12)
• Gunship+ (13 3/4)
• Transport Helicopter+ (10 5/12)
• Aircraft Carrier (Large) (13 7/16)
• Aircraft Carrier (10 5/8)
• Lander (10 5/16)

Supply Truck+/Convoy+ (both have the exact same Defense values):

• Anti-Air Tank (10 5/8)
• Mercenary Anti-Air Tank (13 7/16)
• Attacker (11 2/3)
• Lite Attacker (13 3/4, 10 5/12)
• Lite Bomber (11 2/3)
• Gunship (13 3/4, 10 5/12)
• Gunship+ (13 3/4)
• Transport Helicopter+ (10 5/12)
• Aircraft Carrier (Large) (13 7/16)
• Aircraft Carrier (10 5/8)
• Lander (10 5/16)

Convoy:

• Anti-Air Tank (12 1/7)
• Mercenary Anti-Air Tank (15 5/14)
• Rocket Launcher+ (10)
• Attacker (11 2/3)
• Lite Attacker (13 3/4, 10 5/12)
• Lite Bomber (11 2/3)
• Gunship (13 3/4, 10 5/12)
• Gusnhip+ (13 3/4)
• Transport Helicopter+ (10 5/12)
• Aircraft Carrier (Large) (15 5/14)
• Aircraft Carrier (12 1/7)
• Lander (11 11/14)

Buggy:

• Anti-Air Tank (14 1/6)
• Mercenary Anti-Air Tank (17 11/12)
• Artillery+ (10)
• Rocket Launcher (10)
• Rocket Launcher+ (11 2/3)
• Attacker (10 10/13)
• Lite Attacker (12 9/13)
• Lite Bomber (10 10/13)
• Gunship (12 9/13)
• Gunship+ (12 9/13)
• Aircraft Carrier (Large) (17 11/12)
• Aircraft Carrier (14 1/6)
• Lander (13 3/4)

Buggy+:

• Anti-Air Tank (11 1/3)
• Mercenary Anti-Air Tank (14 1/3)
• Lite Attacker (10 5/16)
• Gunship (10 5/16)
• Gunship+ (10 5/16)
• Aircraft Carrier (Large) (14 1/3)
• Aircraft Carrier (11 1/3)
• Lander (11)

Humvee+:

• Anti-Air Tank (10)
• Mercenary Anti-Air Tank (12 11/17)
• Lite Attacker (10 5/16)
• Gunship (10 5/16)
• Gunship+ (10 5/16)
• Aircraft Carrier (Large) (12 11/17)
• Small Aircraft Carrier (10)

APC:

• Mercenary Tank (11 4/11)
• Attacker (13)
• Lite Attacker (10*)
• Lite Bomber (13)
• Gunship (10*)
• Gunship+ (16, 10*)

APC+:

• Mercenary Tank (10 5/12)
• Gunship+ (13 1/3)

IFV:

• Gunship+ (11 3/7)

IFV+:

• Gunship+ (10)

Tank Hunter:

• Gunship+ (10)

Anti-Air Tank:

• APC+ (10)
• IFV (10)
• Artillery+ (10 5/9)
• MB Tank (11 1/9)
• Mercenary Tank (13 8/9)

Artillery:

• Buggy+ (10)
• Humvee (10)
• Humvee+ (10)
• APC+ (10)
• IFV (10)
• Artillery+ (10 5/9)
• MB Tank (11 1/9)
• Mercenary Tank (13 8/9)
• Attacker (10 5/6)
• Lite Bomber (10 5/6)
• Gunship+ (13 1/3)

Artillery+:

• Mercenary Tank (11 19/21)
• Gunship+ (11 3/7)

Rocket Launcher:

• Buggy+ (10 10/17)
• Humvee (10 10/17)
• Humvee+ (10 10/17)
• APC+ (10 10/17)
• IFV (10 10/17)
• Artillery+ (11 3/17)
• MB Tank (11 13/17)
• Mercenary Tank (14 12/17)
• Attacker (13)
• Lite Attacker (10*)
• Lite Bomber (13)
• Gunship (10*)
• Gunship+ (16, 10*)

Rocket Launcher+:

• MB Tank (10)
• Mercenary Tank (12 1/2)
• Attacker (10 5/6)
• Lite Bomber (10 5/6)
• Gunship+ (13 1/3)

AA Missile Launcher:

• Buggy+ (10 10/17)
• Humvee (10 10/17)
• Humvee+ (10 10/17)
• APC+ (10 10/17)
• IFV (10 10/17)
• Artillery+ (11 3/17)
• MB Tank (11 13/17)
• Mercenary Tank (14 12/17)
• Attacker (10 5/6)
• Lite Bomber (10 5/6)
• Gunship+ (13 1/3)

AA Missile Launcher+:

• MB Tank (10)
• Mercenary Tank (12 1/2)
• Gunship+ (11 3/7)

Transport Plane/Supply Plane (both have the exact same Defense values):

• Anti-Air Tank (16 2/3)
• Mercenary Anti-Air Tank (16 2/3, 11 1/9)
• AA Missile Launcher (15 5/18)
• AA Missile Launcher+ (14 4/9)
• Fighter (13 8/9)
• Lite Fighter (13 8/9)
• Interceptor (13 1/18, 13 8/9)
• Attacker (13 8/9)
• Aegis Warship (16 2/3)
• Mercenary Missile Frigate (14 4/9)
• Aircraft Carrier (Large) (14 4/9, 11 1/9)
• Aircraft Carrier (15 5/8)

Gunship:

• Anti-Air Tank (11 1/9)
• Mercenary Anti-Air Tank (11 1/9)
• AA Missile Launcher (10 5/27)
• Fighter (12 1/2)
• Lite Fighter (12 1/2)
• Interceptor (11 3/4, 12 1/2)
• Attacker (12 1/2)
• Aegis Warship (10 5/7)

Gunship+:

• Fighter (10 5/12)
• Lite Fighter (10 5/12)
• Interceptor (10 5/12)
• Attacker (10 5/12)

Anti-Submarine Helicopter:

• Anti-Air Tank (13 7/11)
• Mercenary Anti-Air Tank (13 7/11)
• AA Missile Launcher (12 1/2)
• AA Missile Launcher+ (11 9/11)
• Fighter (12 1/2)
• Lite Fighter (12 1/2)
• Interceptor (12 1/2, 11 3/4)
• Attacker (12 1/2)
• Aegis Warship (13 7/11)
• Mercenary Missile Frigate (11 9/11)
• Aircraft Carrier (Large) (11 9/11)
• Aircraft Carrier (12 1/2)

Transport Helicopter:

• Anti-Air Tank (15)
• Mercenary Anti-Air Tank (15, 10)
• AA Missile Launcher (13 3/4)
• AA Missile Launcher+ (13)
• Fighter (13 8/9)
• Lite Fighter (13 8/9)
• Interceptor (13 1/18, 13 8/9)
• Attacker (13 8/9)
• Aegis Warship (15)
• Mercenary Missile Frigate (13)
• Aircraft Carrier (Large) (13, 10)
• Aircraft Carrier (13 3/4)

Transport Helicopter+:

• Anti-Air Tank (13 1/23)
• Mercenary Anti-Air Tank (13 1/23)
• AA Missile Launcher (11 22/23)
• AA Missile Launcher+ (11 7/23)
• Fighter (12 1/2)
• Lite Fighter (12 1/2)
• Interceptor (12 1/2, 11 3/4)
• Attacker (12 1/2)
• Aegis Warship (13 1/23)
• Mercenary Missile Frigate (11 7/23)
• Aircraft Carrier (Large) (11 7/23)
• Aircraft Carrier (11 22/23)

Lander:

• Aegis Warship (14 1/7)
• Submarine (10)
• Submarine+ (13)

Tanker:

• Anti-Submarine Helicopter (13 13/24)
• Aegis Warship (19 4/5)
• Submarine (11 4/11)
• Submarine+ (14 17/22)

Advance Wars 1

(L) = Luck required (H) = doesn't apply when hidden

Infantry:

• Medium Tank (105%)
• AA Tank (105%)
• Rocket Launcher (95%) (L)
• Bomber (110%)
• Battleship (95%) (L)

Mech:

• Medium Tank (95%) (L)
• AA Tank (105%)
• Bomber (110%)

Recon:

• Medium Tank (105%)
• Bomber (105%)

Light Tank:

• Bomber (105%)

Medium Tank:

• Bomber (95%) (L)

AA Tank:

• Medium Tank (105%)
• Bomber (95%) (L)

APC:

• Medium Tank (105%)
• Bomber (105%)

Artillery:

• Medium Tank (105%)
• Bomber (105%)

Rocket Launcher:

• Medium Tank (105%)
• Bomber (105%)

AA Missile Launcher:

• Medium Tank (105%)
• Bomber (105%)

Fighter:

• AA Missile Launcher (100%)

Bomber:

• AA Missile Launcher (100%)
• Fighter (100%)

Battle Helicopter:

• AA Tank (120%)
• AA Missile Launcher (120%)
• Fighter (100%)
• Cruiser (115%)

Transport Helicopter:

• AA Tank (120%)
• AA Missile Launcher (120%)
• Fighter (100%)
• Battle Helicopter (95%) (L)
• Cruiser (115%)

Cruiser:

• Battleship (95%) (L)

Submarine:

• Bomber (95%) (L) (H)
• Battleship (95%) (L) (H)

Lander:

• Bomber (95%) (L)
• Battleship (95%) (L)
• Submarine (95%) (L)

Advance Wars 2

Infantry:

• Medium Tank (105%)
• Neotank (125%)
• AA Tank (105%)
• Rocket Launcher (95%) (L)
• Bomber (110%)
• Battleship (95%) (L)

Mech:

• Medium Tank (95%) (L)
• Neotank (115%)
• AA Tank (105%)
• Bomber (110%)

Recon:

• Medium Tank (105%)
• Neotank (125%)
• Bomber (105%)

Light Tank:

• Neotank (105%)
• Bomber (105%)

Medium Tank:

• Bomber (95%) (L)

AA Tank:

• Medium Tank (105%)
• Neotank (115%)
• Bomber (95%) (L)

APC:

• Medium Tank (105%)
• Neotank (125%)
• Bomber (105%)

Artillery:

• Medium Tank (105%)
• Neotank (115%)
• Bomber (105%)

Rocket Launcher:

• Medium Tank (105%)
• Neotank (125%)
• Bomber (105%)

AA Missile Launcher:

• Medium Tank (105%)
• Neotank (125%)
• Bomber (105%)

Fighter:

• AA Missile Launcher (100%)

Bomber:

• AA Missile Launcher (100%)
• Fighter (100%)

Battle Helicopter:

• AA Tank (120%)
• AA Missile Launcher (120%)
• Fighter (100%)
• Cruiser (115%)

Transport Helicopter:

• AA Tank (120%)
• AA Missile Launcher (120%)
• Fighter (100%)
• Battle Helicopter (95%) (L)
• Cruiser (115%)

Cruiser:

• Battleship (95%) (L)

Submarine:

• Bomber (95%) (L) (H)
• Battleship (95%) (L) (H)

Lander:

• Bomber (95%) (L)
• Battleship (95%) (L)
• Submarine (95%) (L)

Advance Wars Dual Strike

Infantry:

• Medium Tank (105%)
• Neotank (125%)
• Megatank (135%)
• AA Tank (105%)
• Rocket Launcher (95%) (L)
• Piperunner (95%) (L)
• Bomber (110%)
• Battleship (95%) (L)

Mech:

• Medium Tank (95%) (L)
• Neotank (115%)
• Megatank (125%)
• AA Tank (105%)
• Bomber (110%)

Recon:

• Medium Tank (105%)
• Neotank (125%)
• Megatank (195%)
• Bomber (105%)

Light Tank:

• Neotank (105%)
• Megatank (180%)
• Bomber (105%)

Medium Tank:

• Megatank (125%)
• Bomber (95%) (L)

Neotank:

• Megatank (115%)

AA Tank:

• Medium Tank (105%)
• Neotank (115%)
• Megatank (195%)
• Bomber (95%) (L)

APC:

• Medium Tank (105%)
• Neotank (125%)
• Megatank (195%)
• Bomber (105%)

Artillery:

• Medium Tank (105%)
• Neotank (115%)
• Megatank (195%)
• Bomber (105%)

Rocket Launcher:

• Medium Tank (105%)
• Neotank (125%)
• Megatank (195%)
• Bomber (105%)

AA Missile Launcher:

• Medium Tank (105%)
• Neotank (125%)
• Megatank (195%)
• Bomber (105%)

Piperunner:

• Neotank (105%)
• Megatank (180%)
• Bomber (105%)

Fighter:

• AA Missile Launcher (100%)
• Aircraft Carrier (100%)

Bomber:

• AA Missile Launcher (100%)
• Fighter (100%)
• Cruiser (100%)
• Aircraft Carrier (100%)

Stealth:

• AA Missile Launcher (100%) (H)
• Cruiser (100%) (H)
• Aircraft Carrier (100%) (H)

Black Bomb:

• AA Tank (120%)
• AA Missile Launcher (120%)
• Piperunner (120%)
• Fighter (120%)
• Stealth (120%)
• Cruiser (120%)
• Aircraft Carrier (120%)

Battle Helicopter:

• AA Tank (105%)
• AA Missile Launcher (115%)
• Piperunner (105%)
• Fighter (120%)
• Cruiser (105%)
• Aircraft Carrier (115%)

Transport Helicopter:

• AA Tank (105%)
• AA Missile Launcher (115%)
• Piperunner (105%)
• Fighter (120%)
• Stealth (95%) (L)
• Battle Helicopter (95%) (L)
• Cruiser (105%)
• Aircraft Carrier (115%)

Cruiser:

• Battleship (95%) (L)

Submarine:

• Bomber (95%) (L) (H)
• Battleship (95%) (L) (H)

Lander:

• Bomber (95%) (L)
• Battleship (95%) (L)
• Submarine (95%) (L)

Black Boat:

• Megatank (105%)
• Bomber (95%) (L)
• Battleship (95%) (L)
• Submarine (95%) (L)

Advance Wars Days of Ruin

Infantry:

• Medium Tank (90%) (L)
• War Tank (105%)
• Anti-Air (105%)
• Artillery (90%) (L)
• Rockets (95%) (L)
• Bomber (115%)
• Seaplane (90%) (L)

Mech:

• War Tank (95%) (L)
• Anti-Air (105%)
• Rockets (90%) (L)
• Bomber (110%)

Bike:

• War Tank (95%) (L)
• Anti-Air (105%)
• Rockets (90%) (L)
• Bomber (110%)

Recon:

• Medium Tank (95%) (L)
• War Tank (105%)
• Rockets (90%) (L)
• Bomber (105%)

Flare:

• Medium Tank (90%) (L)
• War Tank (105%)
• Bomber (105%)

Light Tank:

• Bomber (105%)

Medium Tank:

• Bomber (95%) (L)

Anti-Air:

• Medium Tank (90%) (L)
• War Tank (105%)

Rig:

• Medium Tank (90%) (L)
• War Tank (105%)
• Bomber (105%)

Artillery:

• War Tank (105%)
• Bomber (105%)

Rocket Launcher:

• Medium Tank (90%) (L)
• War Tank (105%)
• Bomber (105%)

Missiles:

• Medium Tank (90%) (L)
• War Tank (105%)
• Bomber (95%) (L)

Fighter:

• Missiles (100%)
• Cruiser (105%)

Duster:

• Missiles (100%)
• Cruiser (105%)

Bomber:

• Missiles (100%)
• Cruiser (105%)

Seaplane:

• Missiles (100%)
• Cruiser (105%)

B-Copter:

• Anti-Air (105%)
• Missiles (120%)
• Fighter (120%)
• Cruiser (120%)

T-Copter:

• Anti-Air (120%)
• Missiles (120%)
• Fighter (120%)
• Seaplane (90%) (L)
• Cruiser (120%)

Submarine:

• Bomber (95%) (L) (H)
• Cruiser (95%) (L)

Carrier:

• Submarine (110%)

Lander:

• Bomber (95%) (L)

Gunboat:

• Artillery (100%)
• Rockets(105%)
• Bomber (120%)
• Seaplane (105%)
• Battleship (95%) (L)
• Submarine (120%)