diff --git a/data/file_list.yml b/data/file_list.yml
index 02a38e91..86428a14 100644
--- a/data/file_list.yml
+++ b/data/file_list.yml
@@ -291378,27 +291378,27 @@ Project/Collision/ActorCollisionController.o:
     label:
     - _ZN2al24ActorCollisionControllerC1EPNS_9LiveActorE
     - _ZN2al24ActorCollisionControllerC2EPNS_9LiveActorE
-    status: NotDecompiled
+    status: Matching
   - offset: 0xa4d534
     size: 16
     label: _ZN2al24ActorCollisionController17setColliderRadiusEf
-    status: NotDecompiled
+    status: Matching
   - offset: 0xa4d544
     size: 80
     label: _ZN2al24ActorCollisionController22setColliderRadiusScaleEf
-    status: NotDecompiled
+    status: Matching
   - offset: 0xa4d594
     size: 16
     label: _ZN2al24ActorCollisionController18setColliderOffsetYEf
-    status: NotDecompiled
+    status: Matching
   - offset: 0xa4d5a4
     size: 180
     label: _ZN2al24ActorCollisionController6updateEv
-    status: NotDecompiled
+    status: Matching
   - offset: 0xa4d658
     size: 68
     label: _ZN2al24ActorCollisionController13resetToOriginEi
-    status: NotDecompiled
+    status: Matching
 Project/Controller/JoyPadAccelerometerAddon.o:
   '.text':
   - offset: 0xa4d69c
diff --git a/lib/al/Library/Collision/ActorCollisionController.cpp b/lib/al/Library/Collision/ActorCollisionController.cpp
new file mode 100644
index 00000000..1c8c33d3
--- /dev/null
+++ b/lib/al/Library/Collision/ActorCollisionController.cpp
@@ -0,0 +1,59 @@
+#include "Library/Collision/ActorCollisionController.h"
+
+#include "Library/LiveActor/ActorCollisionFunction.h"
+
+namespace al {
+
+ActorCollisionController::ActorCollisionController(LiveActor* actor) : mActor(actor) {
+    mRadius = getColliderRadius(mActor);
+    mOffsetY = getColliderOffsetY(mActor);
+}
+
+void ActorCollisionController::setColliderRadius(f32 radius) {
+    mDelay = -1;
+    al::setColliderRadius(mActor, radius);
+}
+
+void ActorCollisionController::setColliderRadiusScale(f32 scale) {
+    setColliderRadius(mRadius * scale);
+    setColliderOffsetY(mOffsetY * scale);
+}
+
+void ActorCollisionController::setColliderOffsetY(f32 offsetY) {
+    mDelay = -1;
+    al::setColliderOffsetY(mActor, offsetY);
+}
+
+void ActorCollisionController::update() {
+    if (mDelay <= 0)
+        return;
+
+    if (mDelay == 1) {
+        resetToOrigin(mDelay);
+        return;
+    }
+
+    f32 radius = getColliderRadius(mActor);
+    f32 offsetY = getColliderOffsetY(mActor);
+    f32 rate = 1.0f / mDelay;
+
+    radius += (mRadius - radius) * rate;
+    offsetY += (mOffsetY - offsetY) * rate;
+    al::setColliderRadius(mActor, radius);
+    al::setColliderOffsetY(mActor, offsetY);
+
+    mDelay--;
+}
+
+void ActorCollisionController::resetToOrigin(s32 delay) {
+    if (delay >= 2) {
+        mDelay = delay;
+        return;
+    }
+
+    al::setColliderRadius(mActor, mRadius);
+    al::setColliderOffsetY(mActor, mOffsetY);
+    mDelay = 0;
+}
+
+}  // namespace al
diff --git a/lib/al/Library/Collision/ActorCollisionController.h b/lib/al/Library/Collision/ActorCollisionController.h
new file mode 100644
index 00000000..6b9b90d7
--- /dev/null
+++ b/lib/al/Library/Collision/ActorCollisionController.h
@@ -0,0 +1,25 @@
+#pragma once
+
+#include <basis/seadTypes.h>
+
+namespace al {
+class LiveActor;
+
+class ActorCollisionController {
+public:
+    ActorCollisionController(LiveActor* actor);
+    void setColliderRadius(f32 radius);
+    void setColliderRadiusScale(f32 scale);
+    void setColliderOffsetY(f32 offsetY);
+    void update();
+    void resetToOrigin(s32 delay);
+
+private:
+    LiveActor* mActor;
+    f32 mRadius;
+    f32 mOffsetY;
+    s32 mDelay = 0;
+};
+
+static_assert(sizeof(ActorCollisionController) == 0x18);
+}  // namespace al
diff --git a/tools/check-format.py b/tools/check-format.py
index da17f1a1..93552fbe 100755
--- a/tools/check-format.py
+++ b/tools/check-format.py
@@ -75,11 +75,17 @@ def common_no_namespace_qualifiers(c, path):
                 del nest_level[-1]
                 continue
 
-            matches = re.findall(r"([^\(,\s]+::)+[^\(,\s]+", x)
+            matches = re.findall(r"([^\(,\s]+::)+([^\(,\s]+)", x)
             for match in matches:
-                match = match[0:-2]
+                namespace = match[0][0:-2]
+
+                if "setColliderRadius" in match[1]:
+                    continue;
+                if "setColliderOffsetY" in match[1]:
+                    continue;
+
                 # examples: "sead", "al", "nn::g3d"
-                if CHECK(lambda a: match not in allowed_namespaces, line, match + " should be omitted here!",
+                if CHECK(lambda a: namespace not in allowed_namespaces, line, namespace[0] + " should be omitted here!",
                          path): return
 
     if len(nest_level) != 0: