diff --git a/birb/modules/world/actors/actor2D.lua b/birb/modules/world/actors/actor2D.lua
index 220665f..a3830db 100644
--- a/birb/modules/world/actors/actor2D.lua
+++ b/birb/modules/world/actors/actor2D.lua
@@ -42,12 +42,16 @@ local Hitbox  = require("birb.modules.world.actors.utils.hitbox2D")
 
 function Actor2D:new(world, type, x, y, w, h, isSolid)
   self:init(world, type)
-  self:initPhysics(x, y, 0, w, h, 0, isSolid)
+  self:initPhysics(Hitbox, x, y, 0, w, h, 0, isSolid)
   self:initTimers()
   self:initSprite()
   self:initKeys()
 end
 
+function Actor2D:packForHitbox()
+  return {0, 0, self.w, self.h}
+end
+
 function Actor2D:destroy()
   self.world:removeActor(self)
   self.mainHitbox:destroy()
@@ -141,39 +145,6 @@ end
 -- HITBOXES FUNCTIONS
 -- Functions related to actor hitboxes
 
-function Actor2D:addHitboxFromFrameData(framedata, animationID, frameID, hitboxID)
-  local sx, sy = self.sprite:getScalling()
-  local type  = framedata[1]
-  local box  = framedata[2]
-  local isSolid = framedata[3] or false
-  local anim  = animationID or "null"
-  local frame = frameID or 0
-  local id    = hitboxID or 0
-
-  if (type == "main") then
-    self.mainHitbox:setFromData(box, sx, sy)
-  else
-    local hitboxName = anim .. frame .. type .. id
-    self:addHitbox(hitboxName, type, box, sx, sy, isSolid)
-    return hitboxName
-  end
-end
-
-function Actor2D:initMainHitbox()
-  self.mainHitbox = Hitbox(self, self.type, {0, 0, self.w, self.h}, 0, 0, self.isSolid)
-  self.mainHitbox:advertiseAsMainHitbox()
-end
-
-function Actor2D:addHitbox(name, type, data, sx, sy, isSolid)
-  if (self.hitboxes[name] ~= nil) then
-    core.debug:logWarn("actor2D", "the hitbox " .. name .. " already exists")
-  else
-    local hitbox = Hitbox(self, type, data, sx, sy, isSolid)
-    self.hitboxes[name] = hitbox
-    return hitbox
-  end
-end
-
 function Actor2D:checkHitboxCollisions(name, filter)
   self:checkHitboxCollisionsAtPoint(name, self.x, self.y, filter)
 end
diff --git a/birb/modules/world/actors/actor3D.lua b/birb/modules/world/actors/actor3D.lua
index 9fceccc..1b3a595 100644
--- a/birb/modules/world/actors/actor3D.lua
+++ b/birb/modules/world/actors/actor3D.lua
@@ -44,7 +44,7 @@ local Boxes   = require(cwd .. "utils.boxes")
 
 function Actor3D:new(world, type, x, y, z, w, h, d, isSolid)
   self:init(world, type)
-  self:initPhysics(x, y, z, w, h, d, isSolid)
+  self:initPhysics(Hitbox, x, y, z, w, h, d, isSolid)
   self:initTimers()
   self:initSprite()
   self.world:registerShape(self)
@@ -63,6 +63,11 @@ function Actor3D:destroy()
   self.isDestroyed = true
 end
 
+function Actor3D:packForHitbox()
+  return {0, 0, 0, self.w, self.h, self.d}
+end
+
+
 -- PHYSICS FUNCTIONS
 -- Handle movement and collisions.
 
@@ -163,39 +168,6 @@ end
 -- HITBOXES FUNCTIONS
 -- Functions related to actor hitboxes
 
-function Actor3D:addHitboxFromFrameData(framedata, animationID, frameID, hitboxID)
-  local sx, sy = self.sprite:getScalling()
-  local type  = framedata[1]
-  local box   = framedata[2]
-  local isSolid = framedata[3] or false
-  local anim  = animationID or "null"
-  local frame = frameID or 0
-  local id    = hitboxID or 0
-
-  if (type == "main") then
-    self.mainHitbox:setFromData(box, sx, sy)
-  else
-    local hitboxName = anim .. frame .. type .. id
-    self:addHitbox(hitboxName, type, box, sx, sy, isSolid)
-    return hitboxName
-  end
-end
-
-function Actor3D:initMainHitbox()
-  self.mainHitbox = Hitbox(self, self.type, {0, 0, 0, self.w, self.h, self.d}, 0, 0, self.isSolid)
-  self.mainHitbox:advertiseAsMainHitbox()
-end
-
-function Actor3D:addHitbox(name, type, data, sx, sy, isSolid)
-  if (self.hitboxes[name] ~= nil) then
-    core.debug:logWarn("actor3D", "the hitbox " .. name .. " already exists")
-  else
-    local hitbox = Hitbox(self, type, data, sx, sy, isSolid)
-    self.hitboxes[name] = hitbox
-    return hitbox
-  end
-end
-
 function Actor3D:checkHitboxCollisions(name, filter)
   self:checkHitboxCollisionsAtPoint(name, self.x, self.y, self.z, filter)
 end
diff --git a/birb/modules/world/actors/mixins/physics.lua b/birb/modules/world/actors/mixins/physics.lua
index f915043..02c62c1 100644
--- a/birb/modules/world/actors/mixins/physics.lua
+++ b/birb/modules/world/actors/mixins/physics.lua
@@ -3,10 +3,10 @@ PhysicalActor = Object:extend()
 -- PHYSICS FUNCTIONS
 -- Raw implementation of everything common in physics
 
-function PhysicalActor:initPhysics(x, y, z, w, h, d, isSolid)
+function PhysicalActor:initPhysics(hitboxObj, x, y, z, w, h, d, isSolid)
     self:setCoordinate(x, y, z)
 
-    self.isSolid  = isSolid or false
+    self.isSolid = isSolid or false
 
     self.w = w or 0
     self.h = h or 0
@@ -21,7 +21,7 @@ function PhysicalActor:initPhysics(x, y, z, w, h, d, isSolid)
     self.zfrc = 0
 
     self:initGravity()
-    self:initHitboxes()
+    self:initHitboxes(hitboxObj)
 
     self:setBounceFactor()
     self:setFilter()
@@ -135,7 +135,8 @@ end
 -- HITBOX FUNCTIONS
 -- All functions to handle hitboxes
 
-function PhysicalActor:initHitboxes()
+function PhysicalActor:initHitboxes(hitboxObj)
+    self.Hitbox = hitboxObj
     self:initMainHitbox()
 
     self.hitboxes = {}
@@ -174,6 +175,39 @@ function PhysicalActor:getHitboxList(animation, frame)
     end
 end
 
+function PhysicalActor:addHitboxFromFrameData(framedata, animationID, frameID, hitboxID)
+    local sx, sy = self.sprite:getScalling()
+    local type = framedata[1]
+    local box = framedata[2]
+    local isSolid = framedata[3] or false
+    local anim = animationID or "null"
+    local frame = frameID or 0
+    local id = hitboxID or 0
+
+    if (type == "main") then
+        self.mainHitbox:setFromData(box, sx, sy)
+    else
+        local hitboxName = anim .. frame .. type .. id
+        self:addHitbox(hitboxName, type, box, sx, sy, isSolid)
+        return hitboxName
+    end
+end
+
+function PhysicalActor:initMainHitbox()
+    self.mainHitbox = self.Hitbox(self, self.type, self:packForHitbox(), 0, 0, self.isSolid)
+    self.mainHitbox:advertiseAsMainHitbox()
+end
+
+function PhysicalActor:addHitbox(name, type, data, sx, sy, isSolid)
+    if (self.hitboxes[name] ~= nil) then
+        core.debug:logWarn("PhysicalActor", "the hitbox " .. name .. " already exists")
+    else
+        local hitbox = self.Hitbox(self, type, data, sx, sy, isSolid)
+        self.hitboxes[name] = hitbox
+        return hitbox
+    end
+end
+
 function PhysicalActor:updateHitboxes()
     if (self.hitboxList ~= nil) then
         self:purgeHitbox()