Fix DMG intro and big mode bug.

src/gbc.asm

@@ -799,6 +799,9 @@ GBCBigGameplayProcess::
     ret
 
 .black
+    ld a, [wBGMode]
+    cp a, BG_MODE_DARK
+    jr z, .white
     ld a, OCPSF_AUTOINC | (7*8)+(3*2)
     ldh [rOCPS], a
     ld bc, BLACK_F_C
@@ -809,6 +812,17 @@ GBCBigGameplayProcess::
     ldh [rOCPD], a
     ret
 
+.white
+    ld a, OCPSF_AUTOINC | (7*8)+(3*2)
+    ldh [rOCPS], a
+    ld bc, WHITE_F_C
+    wait_vram
+    ld a, c
+    ldh [rOCPD], a
+    ld a, b
+    ldh [rOCPD], a
+    ret
+
 
     ; Copies the shadow tile maps to VRAM using HDMA. The attributes are copied using instant mode
     ; The tile data is done using hblank mode.

src/intro.asm

@@ -71,7 +71,9 @@ DoDMGEffect:
     ; Yeet the logo
     ld c, 10
 .loop0
+    push bc
     call GetInput
+    pop bc
     ldh a, [hStartState]
     ld hl, hAState
     or a, [hl]
@@ -88,7 +90,9 @@ DoDMGEffect:
 
     ld c, 45
 .loop1
+    push bc
     call GetInput
+    pop bc
     ldh a, [hStartState]
     ld hl, hAState
     or a, [hl]
@@ -111,7 +115,9 @@ DoDMGEffect:
 
     ld c, 20
 .loop2
+    push bc
     call GetInput
+    pop bc
     ldh a, [hStartState]
     ld hl, hAState
     or a, [hl]
@@ -129,7 +135,9 @@ DoDMGEffect:
 
     ld c, 20
 .loop3
+    push bc
     call GetInput
+    pop bc
     ldh a, [hStartState]
     ld hl, hAState
     or a, [hl]
@@ -147,7 +155,9 @@ DoDMGEffect:
 
     ld c, 20
 .loop4
+    push bc
     call GetInput
+    pop bc
     ldh a, [hStartState]
     ld hl, hAState
     or a, [hl]

src/state_gameplay.asm

@@ -909,8 +909,6 @@ SwitchToGameplayBigB:
     jr z, .ungraded
     cp a, SCURVE_MYCO
     jr z, .ungraded
-    cp a, SCURVE_TGM3 ; TODO: Remove when this one has grades.
-    jr z, .ungraded
 
 .graded
     ld de, sBigGameplayTileMap