diff --git a/README.md b/README.md
index 6235851..5cbd270 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ The game is heavily inspired by the TGM series of games and has the following fe
 - Scoring is a hybrid between TGM1 and TGM2.
 - A speed curve reminiscent of TGM, starting slightly faster and skipping the awkward speed reset. The game continues infinitely... But so does the speed increase.
 - A rock solid 60FPS with a traditional 20x10 grid.
+- Game boy color mode.
 
 
 ## Options
@@ -35,7 +36,9 @@ Select the rotation rules:
 Select whether up performs a sonic drop, a hard drop, or nothing at all.
 
 ### Speed Curve
-Select between several speed curves including the DMGTRIS default speed curve, TGM1, 2, and 3, as well as DEATH and SHIRASE mode. Note that all modes use the same scoring and they are all infinite.
+Select between several speed curves including the DMGTRIS default speed curve, TGM1, TGM3, as well as DEATH and SHIRASE mode. In addition there's a "CHILL" curve for when you just want to enjoy some tetris. It doesn't speed up very fast at all.
+
+Note that all modes use the same scoring and they are all infinite.
 
 ### Always 20G
 Whether you want instant-drop gravity to be active at any level.
@@ -98,10 +101,6 @@ Please do not try running it on older emulators such as VBA, since this game use
 The game can be built using gnu make and the RGBDS toolchain.
 
 
-## Issues
-- In very rare cases the frame time in TGM3 and TGW3 modes can be exceeded due to the way the RNG for those modes works. When this happens, the screen will appear slightly glitched for 1 frame but no frame drops will occur. This issues is fundamentally impossible to completely avoid though more optimization may cause it to occur less frequently.
-
-
 ## License
 Copyright (C) 2023 - Randy Thiemann <randy.thiemann@gmail.com>
 
diff --git a/src/constants.asm b/src/constants.asm
index 2f74ee5..44116b0 100644
--- a/src/constants.asm
+++ b/src/constants.asm
@@ -90,10 +90,10 @@ sOption3::
 sOption4::
     db "DMGT"
     db "TGM1"
-    db "TGM2"
     db "TGM3"
     db "DEAT"
     db "SHIR"
+    db "CHIL"
 sOption5::
     db "  NO"
     db " YES"
@@ -216,112 +216,96 @@ sTGM1SpeedCurveEnd::
     dw $FFFF
 
 
-sTGM2SpeedCurve::
+sCHILSpeedCurve::
     dw $0000, 0, $0100
-    db 1, 64
-    db 27, 16, 30, 40
-
-    dw $0030, 30, $0100
-    db 1, 42
-    db 27, 16, 30, 40
-
-    dw $0035, 35, $0100
-    db 1, 32
-    db 27, 16, 30, 40
-
-    dw $0040, 40, $0100
-    db 1, 25
-    db 27, 16, 30, 40
-
-    dw $0060, 60, $0100
-    db 1, 16
-    db 27, 16, 30, 40
-
-    dw $0070, 70, $0100
-    db 1, 8
-    db 27, 16, 30, 40
-
-    dw $0080, 80, $0100
-    db 1, 5
-    db 27, 16, 30, 40
+    db 1, 48
+    db 10, 16, 25, 17
 
     dw $0100, 100, $0200
-    db 1, 3
-    db 27, 16, 30, 40
-
-    dw $0160, 160, $0200
-    db 1, 2
-    db 27, 16, 30, 40
+    db 1, 43
+    db 10, 16, 25, 17
 
     dw $0200, 200, $0300
-    db 1, 64
-    db 27, 16, 30, 40
-
-    dw $0220, 220, $0300
-    db 1, 8
-    db 27, 16, 30, 40
-
-    dw $0230, 230, $0300
-    db 1, 4
-    db 27, 16, 30, 40
-
-    dw $0233, 233, $0300
-    db 1, 3
-    db 27, 16, 30, 40
-
-    dw $0236, 236, $0300
-    db 1, 2
-    db 27, 16, 30, 40
-
-    dw $0251, 251, $0300
-    db 1, 1
-    db 27, 16, 30, 40
+    db 1, 38
+    db 10, 16, 25, 17
 
     dw $0300, 300, $0400
-    db 2, 1
-    db 27, 16, 30, 40
-
-    dw $0330, 330, $0400
-    db 3, 1
-    db 27, 16, 30, 40
-
-    dw $0360, 360, $0400
-    db 4, 1
-    db 27, 16, 30, 40
+    db 1, 33
+    db 10, 16, 25, 17
 
     dw $0400, 400, $0500
-    db 5, 1
-    db 27, 16, 30, 40
-
-    dw $0420, 420, $0500
-    db 4, 1
-    db 27, 16, 30, 40
-
-    dw $0450, 450, $0500
-    db 3, 1
-    db 27, 16, 30, 40
+    db 1, 28
+    db 10, 16, 25, 17
 
     dw $0500, 500, $0600
-    db 20, 1
-    db 27, 10, 30, 25
+    db 1, 23
+    db 10, 16, 25, 17
 
-    dw $0601, 601, $0700
-    db 20, 1
-    db 27, 10, 30, 7
+    dw $0600, 600, $0700
+    db 1, 18
+    db 10, 16, 25, 17
 
-    dw $0701, 701, $0800
-    db 20, 1
-    db 18, 10, 30, 7
+    dw $0700, 700, $0800
+    db 1, 13
+    db 10, 16, 25, 17
 
-    dw $0801, 801, $0900
-    db 20, 1
-    db 14, 10, 30, 1
+    dw $0800, 800, $0900
+    db 1, 8
+    db 10, 16, 25, 17
 
-    dw $0901, 901, $1000
-    db 20, 1
-    db 14, 6, 18, 1
+    dw $0900, 900, $1000
+    db 1, 6
+    db 10, 16, 25, 17
 
-sTGM2SpeedCurveEnd::
+    dw $1000, 1000, $1100
+    db 1, 5
+    db 10, 16, 25, 17
+
+    dw $1300, 1300, $1400
+    db 1, 4
+    db 10, 16, 25, 17
+
+    dw $1600, 1600, $1700
+    db 1, 3
+    db 10, 16, 25, 17
+
+    dw $1900, 1900, $2000
+    db 1, 2
+    db 10, 16, 25, 17
+
+    dw $2900, 2900, $3000
+    db 1, 1
+    db 10, 16, 25, 17
+
+    dw $3333, 3333, $3400
+    db 2, 1
+    db 10, 12, 25, 17
+
+    dw $4444, 4444, $4500
+    db 3, 1
+    db 10, 12, 25, 17
+
+    dw $5555, 5555, $5600
+    db 4, 1
+    db 10, 12, 25, 17
+
+    dw $6666, 6666, $6700
+    db 5, 1
+    db 10, 12, 25, 17
+
+    dw $7777, 7777, $7800
+    db 20, 1
+    db 10, 8, 25, 17
+
+    dw $8888, 8888, $8900
+    db 20, 1
+    db 10, 6, 18, 17
+
+    dw $9999, 9999, $9999
+    db 20, 1
+    db 5, 6, 14, 10
+
+sCHILSpeedCurveEnd::
     dw $FFFF
 
 
diff --git a/src/include/globals.asm b/src/include/globals.asm
index ea5fb23..b04767f 100644
--- a/src/include/globals.asm
+++ b/src/include/globals.asm
@@ -173,10 +173,10 @@ DEF DROP_MODE_COUNT     EQU 3
 
 DEF SCURVE_DMGT         EQU 0
 DEF SCURVE_TGM1         EQU 1
-DEF SCURVE_TGM2         EQU 2
-DEF SCURVE_TGM3         EQU 3
-DEF SCURVE_DEAT         EQU 4
-DEF SCURVE_SHIR         EQU 5
+DEF SCURVE_TGM3         EQU 2
+DEF SCURVE_DEAT         EQU 3
+DEF SCURVE_SHIR         EQU 4
+DEF SCURVE_CHIL         EQU 5
 DEF SCURVE_COUNT        EQU 6
 
 DEF TILE_HIG_MODE_BASE  EQU 232
diff --git a/src/res/sources/tiles.gbr b/src/res/sources/tiles.gbr
index 8ef0b2d..885ea18 100644
Binary files a/src/res/sources/tiles.gbr and b/src/res/sources/tiles.gbr differ
diff --git a/src/res/tiles.inc b/src/res/tiles.inc
index a5ea579..f1ec1ea 100644
--- a/src/res/tiles.inc
+++ b/src/res/tiles.inc
@@ -530,8 +530,8 @@ Tiles::
     DB $4A,$4A,$4A,$4A,$E4,$E4,$00,$00
     DB $CA,$CA,$2A,$2A,$2A,$2A,$4E,$4E
     DB $82,$82,$82,$82,$E2,$E2,$00,$00
-    DB $0A,$0A,$0A,$0A,$0A,$0A,$04,$04
-    DB $0A,$0A,$0A,$0A,$0A,$0A,$00,$00
+    DB $FE,$FE,$06,$06,$0C,$0C,$38,$38
+    DB $60,$60,$C0,$C0,$FE,$FE,$00,$00
 TilesEnd::
 
 
diff --git a/src/state_title.asm b/src/state_title.asm
index 4580de4..b07e9eb 100644
--- a/src/state_title.asm
+++ b/src/state_title.asm
@@ -441,10 +441,6 @@ GetEnd:
     jr nz, :+
     ld bc, sTGM1SpeedCurveEnd
     ret
-:   cp a, SCURVE_TGM2
-    jr nz, :+
-    ld bc, sTGM2SpeedCurveEnd
-    ret
 :   cp a, SCURVE_TGM3
     jr nz, :+
     ld bc, sTGM3SpeedCurveEnd
@@ -453,7 +449,11 @@ GetEnd:
     jr nz, :+
     ld bc, sDEATSpeedCurveEnd
     ret
-:   ld bc, sSHIRSpeedCurveEnd
+:   cp a, SCURVE_SHIR
+    jr nz, :+
+    ld bc, sSHIRSpeedCurveEnd
+    ret
+:   ld bc, sCHILSpeedCurveEnd
     ret
 
 GetStart:
@@ -466,19 +466,19 @@ GetStart:
     jr nz, :+
     ld hl, sTGM1SpeedCurve
     ret
-:   cp a, SCURVE_TGM2
-    jr nz, :+
-    ld hl, sTGM2SpeedCurve
-    ret
 :   cp a, SCURVE_TGM3
     jr nz, :+
-    ld hl, sTGM2SpeedCurve
+    ld hl, sTGM3SpeedCurve
     ret
 :   cp a, SCURVE_DEAT
     jr nz, :+
     ld hl, sDEATSpeedCurve
     ret
-:   ld hl, sSHIRSpeedCurve
+:   cp a, SCURVE_SHIR
+    jr nz, :+
+    ld hl, sSHIRSpeedCurve
+    ret
+:   ld hl, sCHILSpeedCurve
     ret
 
 CheckLevelRange: