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Pen Fight Mania

The pen collection

Four pens, and every one is a different physical object rather than a colour swap. The numbers below are measured from the simulation, not written by hand โ€” mass, length and grip decide how a pen behaves, and every advantage is paid for somewhere else.

Classic Blue

common

14 g
145 mm

The one everybody had. Chewed cap optional.

Impact
65
Anchor
30
Reach
80
Stability
34
Control
65
Launch speed
2.14 m/s
Slide distance
81 cm
Grip
1.00ร—

Gel Glider

uncommon

12 g
134 mm

Light and sharp. Hits hard, but a stiff breeze moves it.

Impact
80
Anchor
12
Reach
79
Stability
14
Control
100
Launch speed
2.46 m/s
Slide distance
80 cm
Grip
1.32ร—

Steel Heavy

rare

20 g
139 mm

Borrowed from your father's desk. Refuses to be moved.

Impact
20
Anchor
88
Reach
46
Stability
58
Control
24
Launch speed
1.45 m/s
Slide distance
62 cm
Grip
0.60ร—

Long Ranger

epic

16 g
178 mm

Absurdly long. Glides forever, turns like a bus.

Impact
63
Anchor
48
Reach
91
Stability
89
Control
27
Launch speed
1.99 m/s
Slide distance
87 cm
Grip
0.80ร—

Why there is no best pen

A flick delivers a fixed impulse, so momentum is identical for every pen. What differs is the mass ratio at the moment of contact โ€” the speed handed to the pen you hit is2J / (m_you + m_them).

A lighter pen therefore shoves harder and reaches further. A heavier pen resists being shoved but travels less and hits softer. Impact and anchor are two ends of one lever, and no pen can buy both.

That is deliberate. Rarity here signals a stronger personality, not a stronger pen โ€” a legendary pen is more specialised, which also makes it more exploitable by someone who knows its weakness.