Binding of Isaac: Rebirth Wiki
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Knockback[]

Testing knockback is kind of tricky and I didn't feel like trying to use Cheat Engine to see if there's an easy-to-trace knockback stat to follow, so the things I could tell are:

  • Pisces and 8 Inch Nails are equal in knockback
  • Blister is stronger
  • Only one boost applies, the highest one
  • Cricket's head does nothing

The testing on Flat Worm was a bit uncertain, so I wouldn't be surprised if there actually is no direct extra knockback and instead tear size affects it; flat worm's effect is also nullified by piercing unlike the rest. Cricket's head seems to have no effect (and the tear size increase is consistent with anything else that gives you equal damage) -Frionil (talk) 11:38, 16 January 2019 (UTC)

Tear flags[]

Writing these down here since I'm not canny enough with cheat engine to locate the memory addresses for various tear flags automatically, so it's easier to find them when I can craft a combo to search for:

ADDR   flags0 h??? orpK mErf BCan GNAI ?wMR LpFt sHPS
ADDR+4 flags1 ???V ?T&b ZlJe £dcU Dngo y€.? i$YO X??!

S = spectral, P = piercing, H = homing, s = slow
t = poison, F = petriFy, p = parasite, L = lump of coal
R = my reflection, M = polypheMus piercing, w = wiggle worm
I = ipecac explosive, A = chArm, N = coNfusion, G = spawn full hearts on kill (Gimpy style)
n = tiNy planet curve, a = anti-grav, C = cricket's body, B = ruBber cement
f = fear, r = pRoptosis fade, E = fire + Explosive, m = strange attractor Magnetic
K = knockback, p = pulse worm, r = ring worm, o = flat wOrm
h = hook worm
! = godhead aura!, X = eXplosivo
O = cOntinuum (needs spectral to work), Y = holY light, $ = random coins on hit, i = black hearts on kill (serpent's kIss style, but no poison)
. = shrink, € = pennies on hit (h€ad of the keeper), y = mYsterious liquid
o = ouroboros worm, g = Glaucoma confusion, n = siNus infection, D = parasitoiD
U = sUlfuric acid, c = compound fracture, d = Dead eye (doesn't increase damage), £ = petrify into gold
e = Euthanasia, J = jacob's ladder, l = Little horn, Z = tech 0
b = pop! Bouncy, & = lachryphagy, T = Trisagion
V = hoVer (uncontrollable ludovico)

? are undetermined. Can't seem to locate *why* Blister knocks back more than Pisces/8-inch, still. Buddy in a Box seems to just grab some random tear flags, which explains why they can spawn lucky pennies on hit etc. Frionil (talk) 19:15, 15 February 2019 (UTC)

Tear Height[]

I've done a lot of testing and found that all the "Tear Height" stat changes are nonexistent in Repentance's new tile-based Range system, except for Number One (-18 pixels of Tear Height, for pee visuals) and Tape Worm (2x Tear Height, erroneously left in from AB+). But neither of these have much of an effect on Range. The game calculates an initial Tear Falling Speed using Tear Height, Shot Speed, and Tear Falling Acceleration (for Ipecac tears) that will make the tear go the number of tiles it needs to.

Example of Number One / normal / all 3 Tape Worm tear heights: https://www.youtube.com/watch?v=CYAM33h1h80

Also, in AB+, the Tear Height stat is entirely misnamed. The relevant variables you can check on the player are TearHeight and TearFallingSpeed. The Range stat equals Tear Height (which is just how high the tear's initial position is; really high range makes tears come out from above the player sprite entirely), and the "tear height" listed on the wiki is actually Tear Falling Speed (starts at 0; higher values mean tears initially move upwards when shot). But I don't really know what to do about the wrong term being used for years. Tear Height is so established for this stat...

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