Jesselton Williams (enemy)

NPC

Enemy

Jesselton Williams

Introduced in

Mansfield Break

In Other Languages

Simplified Chinese

杰斯顿·威廉姆斯

Traditional Chinese

傑斯頓·威廉姆斯

Japanese

ジェッセルトン・ウィリアムズ

General Information

Code

JAK

Grade

Boss

Attack type

Melee/Ranged

Damage type

Physical/Arts^⁎

Targeting type

Ground

Trait

Jailer Form

• RES is greatly increased
• Attacks become ranged and deal Arts damage, and no longer attacks Imprisonment Devices
• Can Stun multiple targets
• The first time HP drops to 0, enters Killer Form

Killer Form

• Frees all imprisoned enemies when entering Killer Form
• Gains significantly increased DEF
• Uses melee Physical attacks that ignore a certain amount of the target's DEF

Jesselton is the main boss of Mansfield Break.

Enemy description

Jesselton Williams, a killer who infiltrated the prison disguised as a jailer. Very particular in both speech and action, he remains graceful even in the midst of battle.

Overview

“	While in Jailer mode, has increased RES, deals Arts damage, and will not attack Imprisonment Devices; When in Executioner mode, has increased DEF and deals Physical damage; When entering Executioner Mode, frees all enemies on the field.	”
	—Tooltip

Even though Jesselton is lacking in defenses when compared to other bosses, he makes up for it by acting as a "wolf in sheep's clothing" through his abilities.

Ability	Initial CD	Cooldown
Jailer Form
Uses a ranged Arts attack that will never target Imprisonment Devices. RES increased by 50.	Jailer Form traits
The next attack hits up to two targets (excluding Imprisonment Devices) within range and Stuns them for 3 seconds with a longer wind-up time of ~1 second. Only used in the Jailer Form.	3 attacks
Revives over 4 seconds when defeated in the Jailer Form and enters the Killer Form.	–
Killer Form
All enemies in the imprisoned state on the map enters the freed state immediately after Jesselton enters the Killer Form. ATK and DEF increased by 700 (Lv0)/800 (Lv1) and 1000, respectively. Has 0.9 MSPD. Uses a melee Physical attack with an interval of 2.5 seconds.	Killer Form traits
The next attack has Jesselton stab the ground and impales the target with iron spikes, dealing two hits that ignore 60% DEF each. Only used in the Killer Form.	3 attacks

Appearances

Side Stories	MB-8 • MB-EX-8
Story Collections	TC-8
Annihilation	South Prison
Integrated Strategies	Disorderly Banquet • Eye For an Eye • Narrow Path • Twin Gargoyles
Reclamation Algorithm	Cavern of Screams
Contingency Contract	Federal Prison
Trials for Navigator	Troubled Prisoner
Other	IM-1 • IM-2

Stats

Lv.	HP	ATK	DEF	RES	MSPD	Atk. int.	E-RES	ERST
0	25000 A+	700 B+	400 C	20 B	0.6 C	4 C	0 E	0 E
1	40000 A+	800 B+	400 C	20 B	0.6 C	4 C	0 E	0 E
Attack range			HP regeneration rate		Weight		Life Point penalty
2*			–		6		2
Susceptibilities			Silence • Stun • Sleep • Freeze • Levitate • Frighten • Fear
Additional information			Level 1 stats are used in MB-EX-8.

Bugs and glitches

• Prior to an update, Jesselton was not immune to shift while transforming into the Killer form and it was possible to shift him outside the map with Weedy's Liquid Nitrogen Cannon at Specialization Level 3 and the Industrial Water Cannon deployed ahead/behind her, making him impossible to be attacked except with Ambriel's Radar Sweep or Goldenglow's Crystalline Shine. This glitch was kept in the rerun of Mansfield Break.
  • While being described as having infinite range, Fartooth with Feathershine Arrows cannot target Jesselton because the skill actually has a finite range of 20 tiles, while most maps' size do not reach that extent.
  • In MB-8, if Jesselton is shifted outside the map while taking his first route, he will return later to follow his second route as if his first was finished. Doing so during Jesselton's second route, however, will force him to stay out of map permanently.