diff --git a/wadsrc/static/zscript/games/duke/ui/menu.zs b/wadsrc/static/zscript/games/duke/ui/menu.zs
index c1b9a6df4..dccfec24e 100644
--- a/wadsrc/static/zscript/games/duke/ui/menu.zs
+++ b/wadsrc/static/zscript/games/duke/ui/menu.zs
@@ -137,7 +137,7 @@ class ListMenuItemDukeLogo : ListMenuItem
 			if (gameinfo.gametype & GAMEFLAG_PLUTOPAK)
 			{
 				int mclock = MSTime() * 120 / 1000;
-				int light = 223 + (Raze.bsin(mclock<<4) >> 9);
+				int light = 223 + Raze.bsin(mclock<<4, -9);
 				let pe = Color(255, light, light, light);
 				Screen.DrawTexture(TexMan.CheckForTexture("MENUPLUTOPAKSPRITE"), false, x + 100, 36, DTA_FullscreenScale, FSMode_Fit320x200Top, DTA_Color, pe, DTA_CenterOffsetRel, true);
 			}
@@ -176,7 +176,7 @@ class ListMenuItemDukeTextItem : ListMenuItemTextItem
 		if (selected)
 		{
 			int mclock = MSTime() * 120 / 1000;
-			int light = 231 + (Raze.bsin(mclock<<5) >> 9);
+			int light = 231 + ((Raze.bsin(mclock<<5) * 3) >> 11);
 			pe = Color(255, light, light, light);
 		}
 		else
diff --git a/wadsrc/static/zscript/games/duke/ui/sbar_d.zs b/wadsrc/static/zscript/games/duke/ui/sbar_d.zs
index 5e50b26e7..ded62e621 100644
--- a/wadsrc/static/zscript/games/duke/ui/sbar_d.zs
+++ b/wadsrc/static/zscript/games/duke/ui/sbar_d.zs
@@ -147,7 +147,7 @@ class DukeStatusBar : DukeCommonStatusBar
 		{
 			int s = -8;
 			if (hud_flashing && p.last_extra > Duke.MaxPlayerHealth())
-				s += Raze.bsin(Raze.GetBuildTime() << 5) / 768;
+				s += Raze.bsin(Raze.GetBuildTime() << 5, -10);
 			int intens = clamp(255 - 6 * s, 0, 255);
 			format = String.Format("%d", p.last_extra);
 			DrawString(numberFont, format, (25, texty), DI_TEXT_ALIGN_LEFT, Font.CR_UNTRANSLATED, intens / 255., 0, 0);
diff --git a/wadsrc/static/zscript/games/duke/ui/sbar_r.zs b/wadsrc/static/zscript/games/duke/ui/sbar_r.zs
index fc05db7f4..33ccf2e6b 100644
--- a/wadsrc/static/zscript/games/duke/ui/sbar_r.zs
+++ b/wadsrc/static/zscript/games/duke/ui/sbar_r.zs
@@ -94,7 +94,7 @@ class RedneckStatusBar : DukeCommonStatusBar
 		{
 			int s = -8;
 			if (hud_flashing && p.last_extra > Duke.MaxPlayerHealth())
-				s += Raze.bsin(Raze.GetBuildTime() << 5) / 768;
+				s += Raze.bsin(Raze.GetBuildTime() << 5, -10);
 			int intens = clamp(255 - 6 * s, 0, 255);
 			format = String.Format("%d", p.last_extra);
 			DrawString(numberFont, format, (26.5, -numberFont.mFont.GetHeight() * scale + 4), DI_TEXT_ALIGN_LEFT, Font.CR_UNTRANSLATED, intens / 255., 0, 0, (scale, scale));
diff --git a/wadsrc/static/zscript/games/exhumed/ui/menu.zs b/wadsrc/static/zscript/games/exhumed/ui/menu.zs
index c483a5a26..52585f439 100644
--- a/wadsrc/static/zscript/games/exhumed/ui/menu.zs
+++ b/wadsrc/static/zscript/games/exhumed/ui/menu.zs
@@ -101,7 +101,7 @@ class ListMenuItemExhumedTextItem : ListMenuItemTextItem
 		double y = mYpos + v.y / 2;
 
 		int shade;
-		if (selected) shade = Raze.bsin(MSTime() * 16 * 120 / 1000) >> 9;
+		if (selected) shade = Raze.bsin(MSTime() * 16 * 120 / 1000, -9);
 		else if (Selectable()) shade = 0;
 		else shade = 25;
 		let color = Raze.shadeToLight(shade);