diff --git a/autogen/lua_constants/constants.lua b/autogen/lua_constants/constants.lua
index 70d15cdc..287e3cc0 100644
--- a/autogen/lua_constants/constants.lua
+++ b/autogen/lua_constants/constants.lua
@@ -7,7 +7,8 @@ HOOK_MARIO_UPDATE = 1
 HOOK_BEFORE_MARIO_UPDATE = 2
 HOOK_ON_SET_MARIO_ACTION = 3
 HOOK_BEFORE_PHYS_STEP = 4
-HOOK_MAX = 5
+HOOK_ON_PVP_ATTACK = 5
+HOOK_MAX = 6
 
 _CObject = {
     __index = function (t,k)
@@ -139,6 +140,15 @@ CT_TOAD = 2
 CT_WALUIGI = 3
 CT_MAX = 4
 
+NPT_UNKNOWN = 0
+NPT_LOCAL = 1
+NPT_SERVER = 2
+NPT_CLIENT = 3
+
+UNKNOWN_LOCAL_INDEX = -1
+UNKNOWN_GLOBAL_INDEX = -1
+UNKNOWN_NETWORK_INDEX = -1
+
 ------------
 -- layers --
 ------------
diff --git a/docs/lua/constants.md b/docs/lua/constants.md
index 35cab3dc..1ac984de 100644
--- a/docs/lua/constants.md
+++ b/docs/lua/constants.md
@@ -617,6 +617,7 @@
 - HOOK_BEFORE_MARIO_UPDATE
 - HOOK_ON_SET_MARIO_ACTION
 - HOOK_BEFORE_PHYS_STEP
+- HOOK_ON_PVP_ATTACK
 - HOOK_MAX
 
 [:arrow_up_small:](#)
diff --git a/src/game/interaction.c b/src/game/interaction.c
index 9577b389..b51bb5c6 100644
--- a/src/game/interaction.c
+++ b/src/game/interaction.c
@@ -27,6 +27,7 @@
 
 #include "pc/configfile.h"
 #include "pc/network/network.h"
+#include "pc/lua/smlua_hooks.h"
 
 #define INT_GROUND_POUND_OR_TWIRL (1 << 0) // 0x01
 #define INT_PUNCH                 (1 << 1) // 0x02
@@ -1339,9 +1340,10 @@ u32 interact_player(struct MarioState* m, UNUSED u32 interactType, struct Object
     // attacked
     u8 isInCutscene = ((m->action & ACT_GROUP_MASK) == ACT_GROUP_CUTSCENE) || ((m2->action & ACT_GROUP_MASK) == ACT_GROUP_CUTSCENE);
     isInCutscene = isInCutscene || (m->action == ACT_IN_CANNON) || (m2->action == ACT_IN_CANNON);
+    u8 isAttackerInvulnerable = (m->action & ACT_FLAG_INVULNERABLE) || m->invincTimer != 0 || m->hurtCounter != 0;
     u8 isInvulnerable = (m2->action & ACT_FLAG_INVULNERABLE) || m2->invincTimer != 0 || m2->hurtCounter != 0 || isInCutscene;
     u8 isIgnoredAttack = (m->action == ACT_JUMP || m->action == ACT_DOUBLE_JUMP);
-    if ((interaction & INT_ANY_ATTACK) && !(interaction & INT_HIT_FROM_ABOVE) && !isInvulnerable && !isIgnoredAttack) {
+    if ((interaction & INT_ANY_ATTACK) && !(interaction & INT_HIT_FROM_ABOVE) && !isInvulnerable && !isIgnoredAttack && !isAttackerInvulnerable) {
 
         // determine if slide attack should be ignored
         if ((interaction & INT_ATTACK_SLIDE) && player_is_sliding(m2)) {
@@ -1388,6 +1390,8 @@ u32 interact_player(struct MarioState* m, UNUSED u32 interactType, struct Object
         take_damage_and_knock_back(m2, m->marioObj);
         bounce_back_from_attack(m, interaction);
         m2->interactObj = NULL;
+
+        smlua_call_event_hooks_mario_params(HOOK_ON_PVP_ATTACK, m, m2);
         return FALSE;
     }
 
diff --git a/src/pc/lua/smlua_constants_autogen.c b/src/pc/lua/smlua_constants_autogen.c
index 5c22c4b1..18558c40 100644
--- a/src/pc/lua/smlua_constants_autogen.c
+++ b/src/pc/lua/smlua_constants_autogen.c
@@ -3,7 +3,8 @@ char gSmluaConstants[] = "HOOK_UPDATE = 0\n"
 "HOOK_BEFORE_MARIO_UPDATE = 2\n"
 "HOOK_ON_SET_MARIO_ACTION = 3\n"
 "HOOK_BEFORE_PHYS_STEP = 4\n"
-"HOOK_MAX = 5\n"
+"HOOK_ON_PVP_ATTACK = 5\n"
+"HOOK_MAX = 6\n"
 "_CObject = {\n"
 "    __index = function (t,k)\n"
 "        return _get_field(t['_lot'], t['_pointer'], k)\n"
diff --git a/src/pc/lua/smlua_hooks.c b/src/pc/lua/smlua_hooks.c
index d20ccee8..f505296c 100644
--- a/src/pc/lua/smlua_hooks.c
+++ b/src/pc/lua/smlua_hooks.c
@@ -75,6 +75,34 @@ void smlua_call_event_hooks_mario_param(enum LuaHookedEventType hookType, struct
     }
 }
 
+void smlua_call_event_hooks_mario_params(enum LuaHookedEventType hookType, struct MarioState* m1, struct MarioState* m2) {
+    lua_State* L = gLuaState;
+    if (L == NULL) { return; }
+    struct LuaHookedEvent* hook = &sHookedEvents[hookType];
+    for (int i = 0; i < hook->count; i++) {
+        // push the callback onto the stack
+        lua_rawgeti(L, LUA_REGISTRYINDEX, hook->reference[i]);
+
+        // push mario state
+        lua_getglobal(L, "gMarioStates");
+        lua_pushinteger(L, m1->playerIndex);
+        lua_gettable(L, -2);
+        lua_remove(L, -2);
+
+        // push mario state
+        lua_getglobal(L, "gMarioStates");
+        lua_pushinteger(L, m2->playerIndex);
+        lua_gettable(L, -2);
+        lua_remove(L, -2);
+
+        // call the callback
+        if (0 != lua_pcall(L, 2, 0, 0)) {
+            LOG_LUA("Failed to call the callback: %s", lua_tostring(L, -1));
+            continue;
+        }
+    }
+}
+
   ////////////////////
  // hooked actions //
 ////////////////////
diff --git a/src/pc/lua/smlua_hooks.h b/src/pc/lua/smlua_hooks.h
index 8b9cb23c..f487ace1 100644
--- a/src/pc/lua/smlua_hooks.h
+++ b/src/pc/lua/smlua_hooks.h
@@ -9,6 +9,7 @@ enum LuaHookedEventType {
     HOOK_BEFORE_MARIO_UPDATE,
     HOOK_ON_SET_MARIO_ACTION,
     HOOK_BEFORE_PHYS_STEP,
+    HOOK_ON_PVP_ATTACK,
     HOOK_MAX,
 };
 
@@ -18,11 +19,13 @@ static char* LuaHookedEventTypeName[] = {
     "HOOK_BEFORE_MARIO_UPDATE",
     "HOOK_ON_SET_MARIO_ACTION",
     "HOOK_BEFORE_PHYS_STEP",
+    "HOOK_ON_PVP_ATTACK",
     "HOOK_MAX"
 };
 
 void smlua_call_event_hooks(enum LuaHookedEventType hookType);
 void smlua_call_event_hooks_mario_param(enum LuaHookedEventType hookType, struct MarioState* m);
+void smlua_call_event_hooks_mario_params(enum LuaHookedEventType hookType, struct MarioState* m1, struct MarioState* m2);
 bool smlua_call_action_hook(struct MarioState* m, s32* returnValue);
 
 void smlua_bind_hooks(void);