Killer T Cells

Killer T Cell

Mini-boss

A red, spinning cytotoxic T cell that stalks you, winds up and lunges at high speed. Its pack's health shows in the top bar as KILLER T CELL · GEN N.

• Dispatched when Detection reaches 100, from the Lungs on; in the Nasal Passage only for its introduction
• The organ that introduces it sends the first pack after two cleared fights
• Base stats: 260 health (+4% per Immune Alert step) · 16 touch damage
• Speed: always 15% faster than your top speed, however fast your build gets (slows still work on it)
• Lunge: within 280 points it swells for 0.45 s, then lunges for 0.32 s
• Each generation: +60% health, +25% touch damage, slightly bigger, and one more notched ring around it (up to 5)
• Never gives up the hunt and never adapts in a Cytokine Storm; it can roll elite tiers but never the Splitting affix
• Retrovirus deals 50% extra damage to Killer T cells and bosses
• Loot from each original: a guaranteed Ribozyme Core, 1–2 Chaperone Proteins, 30% chance of another Ribozyme Core, 20% chance of gear, 3% chance of a Dormant Virion (extra life); outside Endless Game Mode each Ribozyme Core comes as 1 Chaperone Protein (kills pay half)

Generation 1

Gen 1

A single Killer T cell with one skill: the lunge.

• Pack size: 1
• Lunges every 2.4 s when close

Generation 2

Gen 2

Its lunges now end in a perforin ring.

• Pack size: 1
• Every lunge ends with a ring of 10 perforin shots fired in all directions
• Lunges come slightly more often

Generation 3

Gen 3

Adds homing granzyme shots, and they now hunt in pairs.

• Pack size: 2
• Fires 2 homing granzyme shots every few seconds while it can see you
• Perforin ring grows to 12 shots

Generation 4

Gen 4

Clonal expansion: at half health each one splits off a smaller clone of itself.

• Pack size: 2
• Once per cell, at 50% health: CLONAL EXPANSION spawns a clone with 45% of a full cell's health
• Clones die when the rest of the pack falls
• Perforin ring grows to 14 shots

Generation 5+

Gen 5+

Packs of three with wider granzyme volleys, and every later generation keeps getting tougher.

• Pack size: 3
• Granzyme volleys widen to 3 homing shots
• Perforin ring reaches its maximum of 16 shots
• Lunges speed up each generation, down to one every 1.4 s
• Shot damage grows 15% per generation

The Hunt

Follows you

A Killer T pack follows you through every door, keeping its wounds, until it's destroyed.

• Toast on dispatch: KILLER T CELL DISPATCHED (or N KILLER T CELLS DISPATCHED) with the generation's skill list
• Arrives almost at once through the door or corner farthest from you
• Leave the room and the surviving cells come through after you about 2.5 s later, with the same health and size
• The trail is lost only when you move to the next organ or fall down a drop shaft
• A Refuge hides you from ordinary hunters, but not from Killer T cells
• When a pack arrives, Detection is pulled down to 55; while a pack is out, Detection can't send another

Split Copies

On death

Killing a Killer T cell doesn't end it: two smaller copies burst out and keep hunting.

• IT SPLITS! Each split copy has 40% of the health, is 28% smaller and hits 25% softer; it moves as fast as the original (15% faster than you)
• Copies don't split again, so one original becomes at most two copies
• Only originals drop loot
• The pack only counts as destroyed when every copy is dead

Pack Destroyed

Reward

Wipe out the whole pack and the immune system has to train a stronger generation.

• Toast: KILLER T CELLS DESTROYED
• Detection drops to 0 and is frozen for 20 seconds
• The Immune System Level rises by 1
• The next generation comes the moment Detection maxes out again