diff --git a/constants/serial_constants.asm b/constants/serial_constants.asm
index 757292ee9..390390cc2 100644
--- a/constants/serial_constants.asm
+++ b/constants/serial_constants.asm
@@ -1,4 +1,4 @@
-; link types
+; wLinkMode
 	const_def
 	const LINK_NULL        ; 0
 	const LINK_TIMECAPSULE ; 1
diff --git a/engine/link/link.asm b/engine/link/link.asm
index 0ddff205f..077b3a9f0 100644
--- a/engine/link/link.asm
+++ b/engine/link/link.asm
@@ -2088,7 +2088,7 @@ EnterTimeCapsule:
 	call DelayFrames
 	xor a
 	ldh [hVBlank], a
-	inc a
+	inc a ; LINK_TIMECAPSULE
 	ld [wLinkMode], a
 	ret
 
diff --git a/home/copy.asm b/home/copy.asm
index 803432dc5..5780beb95 100644
--- a/home/copy.asm
+++ b/home/copy.asm
@@ -272,9 +272,9 @@ Request1bpp::
 
 	ldh a, [hTilesPerCycle]
 	push af
-
 	ld a, $8
 	ldh [hTilesPerCycle], a
+
 	ld a, [wLinkMode]
 	cp LINK_MOBILE
 	jr nz, .NotMobile
diff --git a/mobile/mobile_45_sprite_engine.asm b/mobile/mobile_45_sprite_engine.asm
index e2863efc6..fe9b68517 100644
--- a/mobile/mobile_45_sprite_engine.asm
+++ b/mobile/mobile_45_sprite_engine.asm
@@ -691,7 +691,7 @@ Function1163c0:
 	ldh [rSVBK], a
 	farcall ReloadMapPart
 	ld a, [wLinkMode]
-	cp $4
+	cp LINK_MOBILE
 	jr z, .asm_11642a
 	ld a, $8
 	ld [wMusicFade], a
diff --git a/mobile/mobile_46.asm b/mobile/mobile_46.asm
index 9354e4704..95d53bded 100644
--- a/mobile/mobile_46.asm
+++ b/mobile/mobile_46.asm
@@ -7322,7 +7322,7 @@ Function11b7e5:
 	farcall Function17d1f1
 	ld a, $1
 	ld [wForceEvolution], a
-	ld a, $2
+	ld a, LINK_TRADECENTER
 	ld [wLinkMode], a
 	farcall EvolvePokemon
 	xor a
diff --git a/mobile/mobile_5f.asm b/mobile/mobile_5f.asm
index 2350cd0c4..3fe6ce3b8 100644
--- a/mobile/mobile_5f.asm
+++ b/mobile/mobile_5f.asm
@@ -295,7 +295,7 @@ Function17d0f3:
 	farcall Function17d1f1
 	ld a, $1
 	ld [wForceEvolution], a
-	ld a, $2
+	ld a, LINK_TRADECENTER
 	ld [wLinkMode], a
 	farcall EvolvePokemon
 	xor a