diff --git a/asm/link_rfu.s b/asm/link_rfu.s
index 1a6091803c..2247baf0da 100644
--- a/asm/link_rfu.s
+++ b/asm/link_rfu.s
@@ -5,468 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_800F86C
-sub_800F86C: @ 800F86C
-	push {r4-r7,lr}
-	mov r7, r10
-	mov r6, r9
-	mov r5, r8
-	push {r5-r7}
-	movs r0, 0
-	mov r8, r0
-_0800F87A:
-	mov r1, r8
-	lsls r0, r1, 4
-	ldr r2, =gRecvCmds
-	adds r1, r0, r2
-	ldrh r7, [r1]
-	movs r3, 0xFF
-	lsls r3, 8
-	adds r1, r3, 0
-	ands r1, r7
-	movs r2, 0x88
-	lsls r2, 8
-	adds r5, r0, 0
-	cmp r1, r2
-	beq _0800F960
-	cmp r1, r2
-	bgt _0800F8D6
-	movs r0, 0xCC
-	lsls r0, 7
-	cmp r1, r0
-	bne _0800F8A4
-	b _0800FAE0
-_0800F8A4:
-	cmp r1, r0
-	bgt _0800F8C4
-	movs r0, 0x88
-	lsls r0, 7
-	cmp r1, r0
-	bne _0800F8B2
-	b _0800FBF4
-_0800F8B2:
-	movs r0, 0xBE
-	lsls r0, 7
-	cmp r1, r0
-	bne _0800F8BC
-	b _0800FAD0
-_0800F8BC:
-	b _0800FC04
-	.pool
-_0800F8C4:
-	movs r0, 0xEE
-	lsls r0, 7
-	cmp r1, r0
-	beq _0800F920
-	movs r0, 0xF0
-	lsls r0, 7
-	cmp r1, r0
-	beq _0800F90E
-	b _0800FC04
-_0800F8D6:
-	movs r0, 0xBE
-	lsls r0, 8
-	cmp r1, r0
-	bne _0800F8E0
-	b _0800FBF4
-_0800F8E0:
-	cmp r1, r0
-	bgt _0800F8F8
-	movs r0, 0x89
-	lsls r0, 8
-	cmp r1, r0
-	beq _0800F9C8
-	movs r0, 0xA1
-	lsls r0, 8
-	cmp r1, r0
-	bne _0800F8F6
-	b _0800FAAC
-_0800F8F6:
-	b _0800FC04
-_0800F8F8:
-	movs r0, 0xED
-	lsls r0, 8
-	cmp r1, r0
-	bne _0800F902
-	b _0800FB10
-_0800F902:
-	movs r0, 0xEE
-	lsls r0, 8
-	cmp r1, r0
-	bne _0800F90C
-	b _0800FBB0
-_0800F90C:
-	b _0800FC04
-_0800F90E:
-	ldr r4, =gUnknown_03005000
-	ldrb r0, [r4, 0xC]
-	cmp r0, 0
-	bne _0800F920
-	ldr r0, =gReceivedRemoteLinkPlayers
-	ldrb r0, [r0]
-	cmp r0, 0
-	beq _0800F920
-	b _0800FC50
-_0800F920:
-	ldr r0, =gUnknown_03007890
-	ldr r0, [r0]
-	ldrb r0, [r0]
-	mov r6, r8
-	adds r6, 0x1
-	cmp r0, 0
-	beq _0800F930
-	b _0800FC08
-_0800F930:
-	ldr r1, =gRecvCmds+0x2
-	adds r0, r5, r1
-	ldrh r0, [r0]
-	ldr r2, =gUnknown_03005000
-	strb r0, [r2, 0xD]
-	ldr r3, =gRecvCmds+0x4
-	adds r0, r5, r3
-	bl sub_800F74C
-	ldr r4, =gUnknown_03005000+0xCCE
-	strb r0, [r4]
-	b _0800FC08
-	.pool
-_0800F960:
-	ldr r0, =gUnknown_03005000
-	mov r9, r0
-	mov r1, r8
-	lsls r0, r1, 2
-	add r0, r8
-	lsls r7, r0, 2
-	mov r2, r9
-	adds r3, r7, r2
-	movs r4, 0x92
-	adds r4, r3
-	mov r12, r4
-	ldrb r4, [r4]
-	mov r6, r8
-	adds r6, 0x1
-	cmp r4, 0
-	beq _0800F982
-	b _0800FC08
-_0800F982:
-	adds r0, r3, 0
-	adds r0, 0x80
-	movs r2, 0
-	strh r4, [r0]
-	ldr r1, =gRecvCmds+0x2
-	adds r0, r5, r1
-	ldrh r0, [r0]
-	adds r1, r3, 0
-	adds r1, 0x82
-	strh r0, [r1]
-	ldr r1, =gRecvCmds+0x4
-	adds r0, r5, r1
-	ldrh r1, [r0]
-	adds r0, r3, 0
-	adds r0, 0x91
-	strb r1, [r0]
-	mov r0, r9
-	adds r0, 0x88
-	adds r0, r7, r0
-	str r4, [r0]
-	movs r0, 0x1
-	mov r3, r12
-	strb r0, [r3]
-	mov r0, r9
-	adds r0, 0x5C
-	add r0, r8
-	strb r2, [r0]
-	b _0800FC08
-	.pool
-_0800F9C8:
-	ldr r4, =gUnknown_03005000
-	mov r9, r4
-	mov r0, r8
-	lsls r1, r0, 2
-	adds r0, r1, r0
-	lsls r4, r0, 2
-	mov r3, r9
-	adds r2, r4, r3
-	adds r0, r2, 0
-	adds r0, 0x92
-	ldrb r3, [r0]
-	mov r10, r1
-	mov r6, r8
-	adds r6, 0x1
-	cmp r3, 0x1
-	beq _0800F9EA
-	b _0800FC08
-_0800F9EA:
-	movs r0, 0xFF
-	ands r0, r7
-	adds r2, 0x80
-	strh r0, [r2]
-	mov r1, r9
-	adds r1, 0x88
-	adds r1, r4, r1
-	lsls r3, r0
-	ldr r0, [r1]
-	orrs r0, r3
-	str r0, [r1]
-	movs r4, 0
-	ldr r0, =gBlockRecvBuffer
-	mov r9, r0
-	mov r12, r2
-	mov r1, r8
-	lsls r7, r1, 8
-	adds r3, r5, 0
-_0800FA0E:
-	mov r2, r12
-	ldrh r0, [r2]
-	lsls r1, r0, 1
-	adds r1, r0
-	lsls r1, 1
-	adds r1, r4
-	lsls r1, 1
-	adds r1, r7
-	add r1, r9
-	adds r2, r4, 0x1
-	lsls r0, r2, 1
-	adds r0, r3
-	ldr r4, =gRecvCmds
-	adds r0, r4
-	ldrh r0, [r0]
-	strh r0, [r1]
-	lsls r2, 16
-	lsrs r4, r2, 16
-	cmp r4, 0x5
-	bls _0800FA0E
-	ldr r4, =gUnknown_03005000
-	mov r0, r10
-	add r0, r8
-	lsls r0, 2
-	adds r1, r4, 0
-	adds r1, 0x88
-	adds r1, r0, r1
-	adds r2, r0, r4
-	adds r0, r2, 0
-	adds r0, 0x82
-	ldrh r0, [r0]
-	lsls r0, 2
-	ldr r3, =gUnknown_082ED628
-	adds r0, r3
-	ldr r1, [r1]
-	ldr r0, [r0]
-	cmp r1, r0
-	beq _0800FA5C
-	b _0800FC08
-_0800FA5C:
-	adds r1, r2, 0
-	adds r1, 0x92
-	movs r0, 0x2
-	strb r0, [r1]
-	mov r1, r8
-	lsls r0, r1, 24
-	lsrs r0, 24
-	bl sub_800F6FC
-	bl sub_800F7DC
-	ldrb r1, [r0, 0xA]
-	movs r0, 0x7F
-	ands r0, r1
-	cmp r0, 0x45
-	beq _0800FA7E
-	b _0800FC08
-_0800FA7E:
-	ldr r0, =gReceivedRemoteLinkPlayers
-	ldrb r0, [r0]
-	cmp r0, 0
-	bne _0800FA88
-	b _0800FC08
-_0800FA88:
-	ldrb r0, [r4, 0xC]
-	cmp r0, 0
-	beq _0800FA90
-	b _0800FC08
-_0800FA90:
-	ldr r0, =gBlockRecvBuffer
-	bl sub_8010A70
-	b _0800FC08
-	.pool
-_0800FAAC:
-	ldr r2, =gUnknown_082ED6B8
-	ldr r3, =gRecvCmds+0x2
-	adds r0, r5, r3
-	ldrh r1, [r0]
-	lsls r1, 3
-	adds r0, r1, r2
-	ldr r0, [r0]
-	adds r2, 0x4
-	adds r1, r2
-	ldrh r1, [r1]
-	bl sub_800FE84
-	b _0800FC04
-	.pool
-_0800FAD0:
-	ldr r1, =gUnknown_03005000+0xE4
-	add r1, r8
-	movs r0, 0x1
-	strb r0, [r1]
-	b _0800FC04
-	.pool
-_0800FAE0:
-	ldr r2, =gUnknown_03005000
-	movs r4, 0x80
-	lsls r4, 1
-	adds r0, r2, r4
-	ldr r3, =gRecvCmds+0x2
-	adds r1, r5, r3
-	ldrh r0, [r0]
-	mov r6, r8
-	adds r6, 0x1
-	ldrh r1, [r1]
-	cmp r0, r1
-	beq _0800FAFA
-	b _0800FC08
-_0800FAFA:
-	adds r0, r2, 0
-	adds r0, 0xE9
-	add r0, r8
-	movs r1, 0x1
-	strb r1, [r0]
-	b _0800FC08
-	.pool
-_0800FB10:
-	ldr r7, =gUnknown_03005000
-	ldrb r2, [r7, 0xC]
-	cmp r2, 0
-	bne _0800FB78
-	ldr r3, =gReceivedRemoteLinkPlayers
-	ldrb r0, [r3]
-	mov r6, r8
-	adds r6, 0x1
-	cmp r0, 0
-	beq _0800FC08
-	ldr r0, =gRecvCmds+0x2
-	adds r4, r5, r0
-	ldrh r1, [r4]
-	ldr r0, =gUnknown_03007890
-	ldr r0, [r0]
-	ldrb r0, [r0, 0x2]
-	ands r1, r0
-	cmp r1, 0
-	beq _0800FB48
-	strb r2, [r3]
-	bl sub_800D630
-	ldr r1, =gRecvCmds+0x4
-	adds r0, r5, r1
-	ldrh r1, [r0]
-	ldr r2, =0x00000ce4
-	adds r0, r7, r2
-	strb r1, [r0]
-_0800FB48:
-	ldr r0, =gRecvCmds
-	adds r0, 0x6
-	adds r0, r5, r0
-	ldrh r0, [r0]
-	strb r0, [r7, 0xD]
-	ldrh r0, [r4]
-	bl sub_80109E8
-	b _0800FC08
-	.pool
-_0800FB78:
-	movs r0, 0xEE
-	lsls r0, 8
-	bl sub_800FD14
-	ldr r1, =gSendCmd
-	ldr r3, =gRecvCmds+0x2
-	adds r0, r5, r3
-	ldrh r0, [r0]
-	strh r0, [r1, 0x2]
-	ldr r4, =gRecvCmds+0x4
-	adds r0, r5, r4
-	ldrh r0, [r0]
-	strh r0, [r1, 0x4]
-	ldr r0, =gRecvCmds
-	adds r0, 0x6
-	adds r0, r5, r0
-	ldrh r0, [r0]
-	strh r0, [r1, 0x6]
-	b _0800FC04
-	.pool
-_0800FBB0:
-	ldr r4, =gUnknown_03005000
-	ldrb r0, [r4, 0xC]
-	mov r6, r8
-	adds r6, 0x1
-	cmp r0, 0x1
-	bne _0800FC44
-	ldr r0, =0x00000ce3
-	adds r2, r4, r0
-	ldr r1, =gRecvCmds+0x2
-	adds r3, r5, r1
-	ldrb r1, [r3]
-	ldrb r0, [r2]
-	orrs r0, r1
-	strb r0, [r2]
-	ldr r2, =gRecvCmds+0x4
-	adds r0, r5, r2
-	ldrh r1, [r0]
-	ldr r2, =0x00000ce4
-	adds r0, r4, r2
-	strb r1, [r0]
-	ldrh r0, [r3]
-	bl sub_80109E8
-	b _0800FC08
-	.pool
-_0800FBF4:
-	ldr r0, =gLinkPartnersHeldKeys
-	mov r3, r8
-	lsls r1, r3, 1
-	adds r1, r0
-	ldr r4, =gRecvCmds+0x2
-	adds r0, r5, r4
-	ldrh r0, [r0]
-	strh r0, [r1]
-_0800FC04:
-	mov r6, r8
-	adds r6, 0x1
-_0800FC08:
-	ldr r3, =gUnknown_03005000
-	ldrb r4, [r3, 0xC]
-	cmp r4, 0x1
-	bne _0800FC44
-	adds r0, r3, 0
-	adds r0, 0x61
-	mov r1, r8
-	adds r2, r1, r0
-	ldrb r0, [r2]
-	adds r1, r0, 0
-	cmp r1, 0
-	beq _0800FC44
-	cmp r1, 0x4
-	bne _0800FC40
-	adds r0, r3, 0
-	adds r0, 0x5C
-	add r0, r8
-	movs r1, 0
-	strb r4, [r0]
-	strb r1, [r2]
-	b _0800FC44
-	.pool
-_0800FC40:
-	adds r0, 0x1
-	strb r0, [r2]
-_0800FC44:
-	lsls r0, r6, 16
-	lsrs r0, 16
-	mov r8, r0
-	cmp r0, 0x4
-	bhi _0800FC50
-	b _0800F87A
-_0800FC50:
-	pop {r3-r5}
-	mov r8, r3
-	mov r9, r4
-	mov r10, r5
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_800F86C
-
 	thumb_func_start sub_800FC60
 sub_800FC60: @ 800FC60
 	push {lr}
diff --git a/include/link_rfu.h b/include/link_rfu.h
index 144a863b5d..12ee00e0e8 100644
--- a/include/link_rfu.h
+++ b/include/link_rfu.h
@@ -153,9 +153,11 @@ struct UnkRfuStruct_2 {
     /* 0x068 */ u8 filler_68[4];
     /* 0x06c */ struct UnkRfuStruct_2_Sub_6c unk_6c;
     /* 0x080 */ struct UnkRfuStruct_2_Sub_6c unk_80[5];
-    /* 0x0e4 */ u8 filler_e4[10];
+    /* 0x0e4 */ u8 unk_e4[5];
+    /* 0x0e9 */ u8 unk_e9[5];
     /* 0x0ee */ vu8 unk_ee;
-    /* 0x0ef */ u8 filler_ef[0x13];
+    /* 0x0ef */ u8 filler_ef[0x11];
+    /* 0x100 */ u16 unk_100;
     /* 0x102 */ u8 unk_102;
     /* 0x103 */ u8 filler_103[0x21];
     /* 0x124 */ struct UnkRfuStruct_2_Sub_124 unk_124;
@@ -168,7 +170,8 @@ struct UnkRfuStruct_2 {
     /* 0xc85 */ u8 filler_c85[2];
     /* 0xc87 */ u8 unk_c87[5][7][2];
     /* 0xccd */ u8 unk_ccd;
-    /* 0xcce */ u8 filler_cce[2];
+    /* 0xcce */ u8 unk_cce;
+    /* 0xccf */ u8 unk_ccf;
     /* 0xcd0 */ vu8 unk_cd0;
     /* 0xcd1 */ u8 filler_cd1[8];
     /* 0xcd9 */ u8 unk_cd9;
diff --git a/src/link_rfu.c b/src/link_rfu.c
index 2fe991c417..66e36396d1 100644
--- a/src/link_rfu.c
+++ b/src/link_rfu.c
@@ -64,6 +64,8 @@ void sub_8010528(void);
 void sub_8010750(void);
 int sub_80107A0(void);
 void sub_801084C(u8 taskId);
+void sub_80109E8(u16 a0);
+void sub_8010A70(void *a0);
 void sub_8010AAC(u8 taskId);
 void sub_8010D0C(u8 taskId);
 void sub_8011068(u8 a0);
@@ -259,7 +261,7 @@ const u8 gUnknown_082ED6A5[] = {
 };
 const struct {
     u8 *buffer;
-    u16 size;
+    u32 size;
 } gUnknown_082ED6B8[] = {
     { gBlockSendBuffer, 200 },
     { gBlockSendBuffer, 200 },
@@ -3390,3 +3392,109 @@ void sub_800F850(void)
     if (gUnknown_03005000.unk_00 == NULL)
         gUnknown_03005000.unk_00 = sub_800F820;
 }
+
+void sub_800F86C(u8 unused)
+{
+    u16 i;
+    u16 j;
+
+    for (i = 0; i < MAX_RFU_PLAYERS; i++)
+    {
+        switch (gRecvCmds[i][0] & 0xff00)
+        {
+            case 0x7800:
+                if (gUnknown_03005000.unk_0c == 0 && gReceivedRemoteLinkPlayers != 0)
+                    return;
+                // fallthrough
+            case 0x7700:
+                if (gUnknown_03007890->unk_00 == 0)
+                {
+                    gUnknown_03005000.playerCount = gRecvCmds[i][1];
+                    gUnknown_03005000.unk_cce = sub_800F74C((u8 *)(gRecvCmds[i] + 2));
+                }
+                break;
+            case 0x8800:
+                if (gUnknown_03005000.unk_80[i].unk_12 == 0)
+                {
+                    gUnknown_03005000.unk_80[i].unk_00 = 0;
+                    gUnknown_03005000.unk_80[i].unk_02 = gRecvCmds[i][1];
+                    gUnknown_03005000.unk_80[i].unk_11 = gRecvCmds[i][2];
+                    gUnknown_03005000.unk_80[i].unk_08 = 0;
+                    gUnknown_03005000.unk_80[i].unk_12 = 1;
+                    gUnknown_03005000.unk_5c[i] = 0;
+                }
+                break;
+            case 0x8900:
+                if (gUnknown_03005000.unk_80[i].unk_12 == 1)
+                {
+                    gUnknown_03005000.unk_80[i].unk_00 = gRecvCmds[i][0] & 0xff;
+                    gUnknown_03005000.unk_80[i].unk_08 |= (1 << gUnknown_03005000.unk_80[i].unk_00);
+                    for (j = 0; j < 6; j++)
+                        gBlockRecvBuffer[i][gUnknown_03005000.unk_80[i].unk_00 * 6 + j] = gRecvCmds[i][j + 1];
+                    if (gUnknown_03005000.unk_80[i].unk_08 == gUnknown_082ED628[gUnknown_03005000.unk_80[i].unk_02])
+                    {
+                        gUnknown_03005000.unk_80[i].unk_12 = 2;
+                        sub_800F6FC(i);
+                        if (sub_800F7DC()->unk_0a_0 == 0x45 && gReceivedRemoteLinkPlayers != 0 && gUnknown_03005000.unk_0c == 0)
+                            sub_8010A70(gBlockRecvBuffer);
+                    }
+                }
+                break;
+            case 0xa100:
+                sub_800FE84(gUnknown_082ED6B8[gRecvCmds[i][1]].buffer, (u16)gUnknown_082ED6B8[gRecvCmds[i][1]].size);
+                break;
+            case 0x5f00:
+                gUnknown_03005000.unk_e4[i] = 1;
+                break;
+            case 0x6600:
+                if (gUnknown_03005000.unk_100 == gRecvCmds[i][1])
+                    gUnknown_03005000.unk_e9[i] = 1;
+                break;
+            case 0xed00:
+                if (gUnknown_03005000.unk_0c == 0)
+                {
+                    if (gReceivedRemoteLinkPlayers != 0)
+                    {
+                        if (gRecvCmds[i][1] & gUnknown_03007890->unk_02)
+                        {
+                            gReceivedRemoteLinkPlayers = 0;
+                            sub_800D630();
+                            gUnknown_03005000.unk_ce4 = gRecvCmds[i][2];
+                        }
+                        gUnknown_03005000.playerCount = gRecvCmds[i][3];
+                        sub_80109E8(gRecvCmds[i][1]);
+                    }
+                }
+                else
+                {
+                    sub_800FD14(0xee00);
+                    gSendCmd[1] = gRecvCmds[i][1];
+                    gSendCmd[2] = gRecvCmds[i][2];
+                    gSendCmd[3] = gRecvCmds[i][3];
+                }
+                break;
+            case 0xee00:
+                if (gUnknown_03005000.unk_0c == 1)
+                {
+                    gUnknown_03005000.unk_ce3 |= gRecvCmds[i][1];
+                    gUnknown_03005000.unk_ce4 = gRecvCmds[i][2];
+                    sub_80109E8(gRecvCmds[i][1]);
+                }
+                break;
+            case 0x4400:
+            case 0xbe00:
+                gLinkPartnersHeldKeys[i] = gRecvCmds[i][1];
+                break;
+        }
+        if (gUnknown_03005000.unk_0c == 1 && gUnknown_03005000.unk_61[i])
+        {
+            if (gUnknown_03005000.unk_61[i] == 4)
+            {
+                gUnknown_03005000.unk_5c[i] = 1;
+                gUnknown_03005000.unk_61[i] = 0;
+            }
+            else
+                gUnknown_03005000.unk_61[i]++;
+        }
+    }
+}