diff --git a/mercuryhook/io4.c b/mercuryhook/io4.c
index 2ff0e831..30c7e351 100644
--- a/mercuryhook/io4.c
+++ b/mercuryhook/io4.c
@@ -52,11 +52,11 @@ static HRESULT mercury_io4_poll(void *ctx, struct io4_state *state)
 
     mercury_dll.get_opbtns(&opbtn);
 
-    if (opbtn & MAI2_IO_OPBTN_TEST) {
+    if (opbtn & MERCURY_IO_OPBTN_TEST) {
         state->buttons[0] |= IO4_BUTTON_TEST;
     }
 
-    if (opbtn & MAI2_IO_OPBTN_SERVICE) {
+    if (opbtn & MERCURY_IO_OPBTN_SERVICE) {
         state->buttons[0] |= IO4_BUTTON_SERVICE;
     }
 
diff --git a/mercuryio/mercuryio.c b/mercuryio/mercuryio.c
index 93266ab3..96a60509 100644
--- a/mercuryio/mercuryio.c
+++ b/mercuryio/mercuryio.c
@@ -26,89 +26,13 @@ HRESULT mercury_io_init(void)
 HRESULT mercury_io_poll(void)
 {
     mercury_opbtn = 0;
-    mercury_player1_btn = 0;
-    mercury_player2_btn = 0;
 
     if (GetAsyncKeyState(mercury_io_cfg.vk_test)) {
-        mercury_opbtn |= MAI2_IO_OPBTN_TEST;
+        mercury_opbtn |= MERCURY_IO_OPBTN_TEST;
     }
 
     if (GetAsyncKeyState(mercury_io_cfg.vk_service)) {
-        mercury_opbtn |= MAI2_IO_OPBTN_SERVICE;
-    }
-
-    //Player 1
-    if (GetAsyncKeyState(mercury_io_cfg.vk_1p_btn[0])) {
-        mercury_player1_btn |= MAI2_IO_GAMEBTN_1;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_1p_btn[1])) {
-        mercury_player1_btn |= MAI2_IO_GAMEBTN_2;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_1p_btn[2])) {
-        mercury_player1_btn |= MAI2_IO_GAMEBTN_3;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_1p_btn[3])) {
-        mercury_player1_btn |= MAI2_IO_GAMEBTN_4;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_1p_btn[4])) {
-        mercury_player1_btn |= MAI2_IO_GAMEBTN_5;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_1p_btn[5])) {
-        mercury_player1_btn |= MAI2_IO_GAMEBTN_6;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_1p_btn[6])) {
-        mercury_player1_btn |= MAI2_IO_GAMEBTN_7;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_1p_btn[7])) {
-        mercury_player1_btn |= MAI2_IO_GAMEBTN_8;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_1p_btn[8])) {
-        mercury_player1_btn |= MAI2_IO_GAMEBTN_SELECT;
-    }
-
-    //Player 2
-    if (GetAsyncKeyState(mercury_io_cfg.vk_2p_btn[0])) {
-        mercury_player2_btn |= MAI2_IO_GAMEBTN_1;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_2p_btn[1])) {
-        mercury_player2_btn |= MAI2_IO_GAMEBTN_2;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_2p_btn[2])) {
-        mercury_player2_btn |= MAI2_IO_GAMEBTN_3;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_2p_btn[3])) {
-        mercury_player2_btn |= MAI2_IO_GAMEBTN_4;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_2p_btn[4])) {
-        mercury_player2_btn |= MAI2_IO_GAMEBTN_5;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_2p_btn[5])) {
-        mercury_player2_btn |= MAI2_IO_GAMEBTN_6;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_2p_btn[6])) {
-        mercury_player2_btn |= MAI2_IO_GAMEBTN_7;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_2p_btn[7])) {
-        mercury_player2_btn |= MAI2_IO_GAMEBTN_8;
-    }
-
-    if (GetAsyncKeyState(mercury_io_cfg.vk_2p_btn[8])) {
-        mercury_player2_btn |= MAI2_IO_GAMEBTN_SELECT;
+        mercury_opbtn |= MERCURY_IO_OPBTN_SERVICE;
     }
 
     return S_OK;
@@ -123,11 +47,5 @@ void mercury_io_get_opbtns(uint8_t *opbtn)
 
 void mercury_io_get_gamebtns(uint16_t *player1, uint16_t *player2)
 {
-    if (player1 != NULL) {
-        *player1 = mercury_player1_btn;
-    }
-
-    if (player2 != NULL ){
-        *player2 = mercury_player2_btn;
-    }
+    
 }
\ No newline at end of file
diff --git a/mercuryio/mercuryio.h b/mercuryio/mercuryio.h
index 85b3d5ab..a447f20e 100644
--- a/mercuryio/mercuryio.h
+++ b/mercuryio/mercuryio.h
@@ -5,20 +5,20 @@
 #include <stdint.h>
 
 enum {
-    MAI2_IO_OPBTN_TEST = 0x01,
-    MAI2_IO_OPBTN_SERVICE = 0x02,
+    MERCURY_IO_OPBTN_TEST = 0x01,
+    MERCURY_IO_OPBTN_SERVICE = 0x02,
 };
 
 enum {
-    MAI2_IO_GAMEBTN_1 = 0x01,
-    MAI2_IO_GAMEBTN_2 = 0x02,
-    MAI2_IO_GAMEBTN_3 = 0x04,
-    MAI2_IO_GAMEBTN_4 = 0x08,
-    MAI2_IO_GAMEBTN_5 = 0x10,
-    MAI2_IO_GAMEBTN_6 = 0x20,
-    MAI2_IO_GAMEBTN_7 = 0x40,
-    MAI2_IO_GAMEBTN_8 = 0x80,
-    MAI2_IO_GAMEBTN_SELECT = 0x100,
+    MERCURY_IO_GAMEBTN_1 = 0x01,
+    MERCURY_IO_GAMEBTN_2 = 0x02,
+    MERCURY_IO_GAMEBTN_3 = 0x04,
+    MERCURY_IO_GAMEBTN_4 = 0x08,
+    MERCURY_IO_GAMEBTN_5 = 0x10,
+    MERCURY_IO_GAMEBTN_6 = 0x20,
+    MERCURY_IO_GAMEBTN_7 = 0x40,
+    MERCURY_IO_GAMEBTN_8 = 0x80,
+    MERCURY_IO_GAMEBTN_SELECT = 0x100,
 };
 
 /* Get the version of the Wacca IO API that this DLL supports. This
@@ -47,7 +47,7 @@ HRESULT mercury_io_init(void);
 HRESULT mercury_io_poll(void);
 
 /* Get the state of the cabinet's operator buttons as of the last poll. See
-   MAI2_IO_OPBTN enum above: this contains bit mask definitions for button
+   MERCURY_IO_OPBTN enum above: this contains bit mask definitions for button
    states returned in *opbtn. All buttons are active-high.
 
    Minimum API version: 0x0100 */
@@ -55,7 +55,7 @@ HRESULT mercury_io_poll(void);
 void mercury_io_get_opbtns(uint8_t *opbtn);
 
 /* Get the state of the cabinet's gameplay buttons as of the last poll. See
-   MAI2_IO_GAMEBTN enum above for bit mask definitions. Inputs are split into
+   MERCURY_IO_GAMEBTN enum above for bit mask definitions. Inputs are split into
    a left hand side set of inputs and a right hand side set of inputs: the bit
    mappings are the same in both cases.