diff --git a/include/Actor/Actor.hpp b/include/Actor/Actor.hpp
index 31d3e3ba1..cd4123180 100644
--- a/include/Actor/Actor.hpp
+++ b/include/Actor/Actor.hpp
@@ -204,6 +204,9 @@ class Actor : public SysObject {
     void func_ov000_02098a88(unk32 param1, unk32 param2);
 
     void func_ov017_020bf5c4(Vec3p *param1, unk32 param2, unk32 param3, unk32 param4, unk32 param5);
+
+    void func_ov031_020f7574();
+    void func_ov000_02099afc();
 };
 
 struct Actor_c4_stack {
diff --git a/include/Actor/ActorUnkRBWT.hpp b/include/Actor/ActorUnkRBWT.hpp
index 595aea331..b3b6b55fc 100644
--- a/include/Actor/ActorUnkRBWT.hpp
+++ b/include/Actor/ActorUnkRBWT.hpp
@@ -4,11 +4,14 @@
 
 #include "Actor/Actor.hpp"
 #include "Actor/ActorProfile.hpp"
+#include "Unknown/Common.hpp"
 #include "global.h"
 #include "types.h"
 
 class ActorUnkRBWT_c4 : public Actor_c4 {
 public:
+    ActorUnkRBWT_c4();
+
     ActorUnkRBWT_c4(Actor *param1);
 
     /* 00 */ virtual unk32 vfunc_00(Actor_c4_stack param1, unk32 param2) override;
@@ -21,12 +24,17 @@ class ActorUnkRBWT : public Actor {
 public:
     /* 00 (base) */
     /* 94 */
+    /* 98 */
+    /* f4 */ UnkSystem4 mUnk_F4;
+    /* 154 */ unk32 mUnk_154;
+    /* 174 */ unk32 mUnk_174;
+    /* 1a8 */ UnkSystem5 mUnk_1a8;
 
     ActorUnkRBWT();
 
     /* 4C */ virtual ~ActorUnkRBWT() override;
 
-    void func_ov083_0215b8c0(void);
+    ActorUnkRBWT *func_ov083_0215b8c0(void);
     void func_ov083_0215b9ac(void);
     void func_ov083_0215bcb8(void);
     void func_ov083_0215bcf0(void);
@@ -37,12 +45,12 @@ class ActorUnkRBWT : public Actor {
     void func_ov083_0215bdfc(void);
     void func_ov083_0215bec4(void);
     void func_ov083_0215bed8(void);
-    void func_ov083_0215bfc4(void);
+    void func_ov083_0215bfc4(unk32 param1);
     void func_ov083_0215c0f4(void);
     void func_ov083_0215c114(void);
     void func_ov083_0215c120(void);
     void func_ov083_0215c144(void);
-    void func_ov083_0215c154(void);
+    int func_ov083_0215c154(void);
     void func_ov083_0215c15c(void);
 };
 
diff --git a/include/Unknown/Common.hpp b/include/Unknown/Common.hpp
index 0d22e03c3..5cecb9b08 100644
--- a/include/Unknown/Common.hpp
+++ b/include/Unknown/Common.hpp
@@ -918,6 +918,7 @@ class UnkSystem4 {
     /* 5C */ unk32 mUnk_5C;
     /* 60 */
 
+    UnkSystem4() {}
     UnkSystem4(unk32 param1); // func_ov000_02057b54
 
     // data_ov000_020b1a6c
@@ -926,7 +927,7 @@ class UnkSystem4 {
     /* 0C */ virtual void vfunc_0C();
     /* 10 */ virtual void vfunc_10();
     /* 14 */ virtual void vfunc_14(Mat3p *param1, Vec3p *param2);
-    /* 18 */ virtual void vfunc_18();
+    /* 18 */ virtual void vfunc_18(Vec3p *param1);
     /* 1C */ virtual void vfunc_1C(UnkSystem4_vfunc_1C *param1);
     /* 20 */ virtual void vfunc_20();
 
@@ -993,6 +994,7 @@ class UnkSystem5 {
     /* 1C */ unk32 mUnk_1C;
     /* 20 */
 
+    UnkSystem5() {}
     UnkSystem5(void *param1, unk32 param2); // func_ov000_0205778c
 
     void func_01ffc3b4();
diff --git a/src/083_BossWater/Actor/ActorUnkRBWT.cpp b/src/083_BossWater/Actor/ActorUnkRBWT.cpp
index 6cdb12e50..0aa897fc7 100644
--- a/src/083_BossWater/Actor/ActorUnkRBWT.cpp
+++ b/src/083_BossWater/Actor/ActorUnkRBWT.cpp
@@ -2,11 +2,12 @@
 
 #include "Actor/ActorUnkRBWT.hpp"
 #include "System/SysNew.hpp"
+#include "Unknown/UnkStruct_027e0cdc.hpp"
 
 ARM DECL_PROFILE(ActorProfileUnkRBWT);
 
 ARM Actor *ActorProfileUnkRBWT::Create() {
-    return new(HeapIndex_2) ActorUnkRBWT();
+    // return new(HeapIndex_2) ActorUnkRBWT();
 }
 
 ARM ActorProfileUnkRBWT::ActorProfileUnkRBWT() :
@@ -14,23 +15,43 @@ ARM ActorProfileUnkRBWT::ActorProfileUnkRBWT() :
 
 ARM ActorUnkRBWT::ActorUnkRBWT() {}
 
-ARM void ActorUnkRBWT::func_ov083_0215b8c0(void) {}
+ARM ActorUnkRBWT *ActorUnkRBWT::func_ov083_0215b8c0() {
+    func_ov000_02099afc();
+    return this;
+}
 ARM void ActorUnkRBWT::func_ov083_0215b9ac(void) {}
-ARM void ActorUnkRBWT::func_ov083_0215bcb8(void) {}
+ARM void ActorUnkRBWT::func_ov083_0215bcb8(void) {
+    if (this->mUnk_154 == 3) {
+        this->func_ov083_0215bdfc();
+    }
+    data_027e0cdc->func_ov000_02082a28(7);
+    data_027e0cdc->func_ov000_02082a28(0xe);
+}
 ARM void ActorUnkRBWT::func_ov083_0215bcf0(void) {}
-ARM void ActorUnkRBWT::func_ov083_0215bd64(void) {}
-ARM void ActorUnkRBWT::func_ov083_0215bd78(void) {}
+ARM void ActorUnkRBWT::func_ov083_0215bd64(void) {
+    this->vfunc_20();
+}
+ARM void ActorUnkRBWT::func_ov083_0215bd78(void) {
+    func_ov031_020f7574();
+    if (mUnk_154 != 2 && mUnk_154 != 3) {
+        mUnk_F4.vfunc_18(&mPos);
+    }
+}
 ARM void ActorUnkRBWT::func_ov083_0215bdac(void) {}
-ARM void ActorUnkRBWT::func_ov083_0215bdec(void) {}
+ARM void ActorUnkRBWT::func_ov083_0215bdec(void) {
+    this->func_ov083_0215bfc4(1);
+}
 ARM void ActorUnkRBWT::func_ov083_0215bdfc(void) {}
-ARM void ActorUnkRBWT::func_ov083_0215bec4(void) {}
+ARM void ActorUnkRBWT::func_ov083_0215bec4(void) {
+    func_ov000_02098a88(1, 1);
+}
 ARM void ActorUnkRBWT::func_ov083_0215bed8(void) {}
-ARM void ActorUnkRBWT::func_ov083_0215bfc4(void) {}
+ARM void ActorUnkRBWT::func_ov083_0215bfc4(unk32 param1) {}
 ARM void ActorUnkRBWT::func_ov083_0215c0f4(void) {}
 ARM void ActorUnkRBWT::func_ov083_0215c114(void) {}
 ARM void ActorUnkRBWT::func_ov083_0215c120(void) {}
 ARM void ActorUnkRBWT::func_ov083_0215c144(void) {}
-ARM void ActorUnkRBWT::func_ov083_0215c154(void) {}
+ARM int ActorUnkRBWT::func_ov083_0215c154(void) {}
 ARM void ActorUnkRBWT::func_ov083_0215c15c(void) {}
 
 ARM ActorUnkRBWT::~ActorUnkRBWT() {}