diff --git a/source/games/blood/src/player.cpp b/source/games/blood/src/player.cpp
index 26ed64b9548..6e8ede67f76 100644
--- a/source/games/blood/src/player.cpp
+++ b/source/games/blood/src/player.cpp
@@ -812,7 +812,7 @@ void playerStart(int nPlayer, int bNewLevel)
 	GetActorExtents(actor, &top, &bottom);
 	actor->spr.pos.Z -= bottom - actor->spr.pos.Z;
 	actor->spr.pal = 11 + (pPlayer->teamId & 3);
-	actor->spr.Angles.Yaw = pPlayer->angle.ang = pStartZone->angle;
+	actor->spr.Angles.Yaw = pPlayer->angle.ang = pStartZone->angle; // check me out later.
 	actor->spr.type = kDudePlayer1 + nPlayer;
 	actor->clipdist = pDudeInfo->fClipdist();
 	actor->spr.flags = 15;
@@ -1499,7 +1499,7 @@ int ActionScan(PLAYER* pPlayer, HitInfo* out)
 
 void UpdatePlayerSpriteAngle(PLAYER* pPlayer)
 {
-	pPlayer->actor->spr.Angles.Yaw = pPlayer->angle.ang;
+	pPlayer->actor->spr.Angles.Yaw = pPlayer->angle.ang; // check me out later.
 }
 
 //---------------------------------------------------------------------------
diff --git a/source/games/duke/src/actors.cpp b/source/games/duke/src/actors.cpp
index 62df759bee4..4c651e18e93 100644
--- a/source/games/duke/src/actors.cpp
+++ b/source/games/duke/src/actors.cpp
@@ -362,7 +362,7 @@ void movedummyplayers(void)
 			{
 				act->spr.cstat = CSTAT_SPRITE_BLOCK_ALL;
 				act->spr.pos.Z = act->sector()->ceilingz + 27;
-				act->spr.Angles.Yaw = ps[p].angle.ang;
+				act->spr.Angles.Yaw = ps[p].angle.ang; // check me out later.
 				if (act->temp_data[0] == 8)
 					act->temp_data[0] = 0;
 				else act->temp_data[0]++;
@@ -465,7 +465,7 @@ void moveplayers(void)
 						p->angle.addadjustment(deltaangle(p->angle.ang, (p->wackedbyactor->spr.pos.XY() - p->GetActor()->spr.pos.XY()).Angle()) * 0.5);
 					}
 				}
-				act->spr.Angles.Yaw = p->angle.ang;
+				act->spr.Angles.Yaw = p->angle.ang; // check me out later.
 			}
 		}
 		else
@@ -499,13 +499,13 @@ void moveplayers(void)
 			if (act->spr.extra < 8)
 			{
 				act->vel.X = 8;
-				act->spr.Angles.Yaw = p->angle.ang;
+				act->spr.Angles.Yaw = p->angle.ang; // check me out later.
 				act->spr.extra++;
 				ssp(act, CLIPMASK0);
 			}
 			else
 			{
-				act->spr.Angles.Yaw = DAngle360 - minAngle - p->angle.ang;
+				act->spr.Angles.Yaw = DAngle360 - minAngle - p->angle.ang; // check me out later.
 				SetActor(act, act->spr.pos);
 			}
 		}
@@ -816,7 +816,7 @@ bool queball(DDukeActor *actor, int pocket, int queball, int stripeball)
 							if (actor->spr.pal == 12)
 								actor->vel.X = 10.25;
 							else actor->vel.X = 8.75;
-							actor->spr.Angles.Yaw = ps[p].angle.ang;
+							actor->spr.Angles.Yaw = ps[p].angle.ang; // check me out later.
 							ps[p].toggle_key_flag = 2;
 						}
 					}
diff --git a/source/games/duke/src/actors_d.cpp b/source/games/duke/src/actors_d.cpp
index 264cd3bb285..0c2c45d46bb 100644
--- a/source/games/duke/src/actors_d.cpp
+++ b/source/games/duke/src/actors_d.cpp
@@ -1685,7 +1685,7 @@ static void greenslime(DDukeActor *actor)
 
 		SetActor(actor, actor->spr.pos);
 
-		actor->spr.Angles.Yaw = ps[p].angle.ang;
+		actor->spr.Angles.Yaw = ps[p].angle.ang; // check me out later.
 
 		if ((PlayerInput(p, SB_FIRE) || (ps[p].quick_kick > 0)) && ps[p].GetActor()->spr.extra > 0)
 			if (ps[p].quick_kick > 0 || (ps[p].curr_weapon != HANDREMOTE_WEAPON && ps[p].curr_weapon != HANDBOMB_WEAPON && ps[p].curr_weapon != TRIPBOMB_WEAPON && ps[p].ammo_amount[ps[p].curr_weapon] >= 0))
diff --git a/source/games/duke/src/input.cpp b/source/games/duke/src/input.cpp
index b9af0da20e2..b5f71eb6fe5 100644
--- a/source/games/duke/src/input.cpp
+++ b/source/games/duke/src/input.cpp
@@ -843,7 +843,7 @@ void GameInterface::GetInput(ControlInfo* const hidInput, double const scaleAdju
 
 		p->angle.processhelpers(scaleAdjust);
 		p->horizon.processhelpers(scaleAdjust);
-		p->GetActor()->spr.Angles.Yaw = p->angle.ang;
+		p->GetActor()->spr.Angles.Yaw = p->angle.ang; // check me out later.
 	}
 
 	if (packet)
diff --git a/source/games/duke/src/player_d.cpp b/source/games/duke/src/player_d.cpp
index 51358d97385..883df35e007 100644
--- a/source/games/duke/src/player_d.cpp
+++ b/source/games/duke/src/player_d.cpp
@@ -294,7 +294,7 @@ static void shootknee(DDukeActor* actor, int p, DVector3 pos, DAngle ang)
 			if (splash)
 			{
 				splash->spr.pos.XY() = hit.hitpos.XY();
-				splash->spr.Angles.Yaw = ps[p].angle.ang; // Total tweek
+				splash->spr.Angles.Yaw = ps[p].angle.ang; // check me out later. // Total tweek
 				splash->vel.X = 2;
 				ssp(actor, CLIPMASK0);
 				splash->vel.X = 0;
diff --git a/source/games/duke/src/player_r.cpp b/source/games/duke/src/player_r.cpp
index 8f68c77c694..c2ffda2d04f 100644
--- a/source/games/duke/src/player_r.cpp
+++ b/source/games/duke/src/player_r.cpp
@@ -185,7 +185,7 @@ static void shootmelee(DDukeActor *actor, int p, DVector3 pos, DAngle ang, int a
 			if (splash)
 			{
 				splash->spr.pos.XY() = hit.hitpos.XY();
-				splash->spr.Angles.Yaw = ps[p].angle.ang; // Total tweek
+				splash->spr.Angles.Yaw = ps[p].angle.ang; // check me out later. // Total tweek
 				splash->vel.X = 2;
 				ssp(actor, 0);
 				splash->vel.X = 0;
@@ -1467,7 +1467,7 @@ void checkweapons_r(player_struct* p)
 			auto j = spawn(p->GetActor(), 7220);
 			if (j)
 			{
-				j->spr.Angles.Yaw = p->angle.ang;
+				j->spr.Angles.Yaw = p->angle.ang; // check me out later.
 				j->saved_ammo = p->ammo_amount[MOTORCYCLE_WEAPON];
 			}
 			p->OnMotorcycle = 0;
@@ -1486,7 +1486,7 @@ void checkweapons_r(player_struct* p)
 			auto j = spawn(p->GetActor(), 7233);
 			if (j)
 			{
-				j->spr.Angles.Yaw = p->angle.ang;
+				j->spr.Angles.Yaw = p->angle.ang; // check me out later.
 				j->saved_ammo = p->ammo_amount[BOAT_WEAPON];
 			}
 			p->OnBoat = 0;
@@ -4004,7 +4004,7 @@ void OffMotorcycle(player_struct *p)
 		auto spawned = spawn(p->GetActor(), EMPTYBIKE);
 		if (spawned)
 		{
-			spawned->spr.Angles.Yaw = p->angle.ang;
+			spawned->spr.Angles.Yaw = p->angle.ang; // check me out later.
 			spawned->saved_ammo = p->ammo_amount[MOTORCYCLE_WEAPON];
 		}
 	}
@@ -4065,7 +4065,7 @@ void OffBoat(player_struct *p)
 		auto spawned = spawn(p->GetActor(), EMPTYBOAT);
 		if (spawned)
 		{
-			spawned->spr.Angles.Yaw = p->angle.ang;
+			spawned->spr.Angles.Yaw = p->angle.ang; // check me out later.
 			spawned->saved_ammo = p->ammo_amount[BOAT_WEAPON];
 		}
 	}
diff --git a/source/games/exhumed/src/player.cpp b/source/games/exhumed/src/player.cpp
index 8e900242b86..3cb8e7a0dbe 100644
--- a/source/games/exhumed/src/player.cpp
+++ b/source/games/exhumed/src/player.cpp
@@ -294,7 +294,7 @@ void RestartPlayer(int nPlayer)
 		pActor->spr.pos = nNStartSprite->spr.pos;
 		ChangeActorSect(pActor, nNStartSprite->sector());
 		plr->angle.ang = nNStartSprite->spr.Angles.Yaw;
-		pActor->spr.Angles.Yaw = plr->angle.ang;
+		pActor->spr.Angles.Yaw = plr->angle.ang; // check me out later.
 
 		floorsprt = insertActor(pActor->sector(), 0);
 
@@ -308,7 +308,7 @@ void RestartPlayer(int nPlayer)
         pActor->spr.pos.XY() = plr->sPlayerSave.pos.XY();
 		pActor->spr.pos.Z = plr->sPlayerSave.pSector->floorz;
 		plr->angle.ang = plr->sPlayerSave.nAngle;
-		pActor->spr.Angles.Yaw = plr->angle.ang;
+		pActor->spr.Angles.Yaw = plr->angle.ang; // check me out later.
 
 		floorsprt = nullptr;
 	}
diff --git a/source/games/sw/src/player.cpp b/source/games/sw/src/player.cpp
index 265512b150e..a055f01052e 100644
--- a/source/games/sw/src/player.cpp
+++ b/source/games/sw/src/player.cpp
@@ -1510,14 +1510,14 @@ void UpdatePlayerSpriteAngle(PLAYER* pp)
 {
     DSWActor* plActor = pp->actor;
     plActor->backupang();
-    plActor->spr.Angles.Yaw = pp->angle.ang;
+    plActor->spr.Angles.Yaw = pp->angle.ang; // check me out later.
 
     plActor = pp->PlayerUnderActor;
 
     if (!Prediction && plActor)
     {
         plActor->backupang();
-        plActor->spr.Angles.Yaw = pp->angle.ang;
+        plActor->spr.Angles.Yaw = pp->angle.ang; // check me out later.
     }
 }
 
@@ -1561,7 +1561,7 @@ void DoPlayerTurnVehicle(PLAYER* pp, float avel, double zz, double floordist)
         if (MultiClipTurn(pp, sum, zz, floordist))
         {
             pp->angle.ang = sum;
-            pp->actor->spr.Angles.Yaw = pp->angle.ang;
+            pp->actor->spr.Angles.Yaw = pp->angle.ang; // check me out later.
         }
     }
 }
@@ -1595,7 +1595,7 @@ void DoPlayerTurnVehicleRect(PLAYER* pp, DVector2* pos, DVector2* opos)
         if (RectClipTurn(pp, sum, pos, opos))
         {
             pp->angle.ang = sum;
-            pp->actor->spr.Angles.Yaw = pp->angle.ang;
+            pp->actor->spr.Angles.Yaw = pp->angle.ang; // check me out later.
         }
     }
 }
@@ -1641,7 +1641,7 @@ void DoPlayerTurnTurret(PLAYER* pp, float avel)
         }
 
         pp->angle.ang = new_ang;
-        pp->actor->spr.Angles.Yaw = pp->angle.ang;
+        pp->actor->spr.Angles.Yaw = pp->angle.ang; // check me out later.
     }
 
     OperateSectorObject(pp->sop, pp->angle.ang, pp->sop->pmid);
@@ -1850,7 +1850,7 @@ void UpdatePlayerSprite(PLAYER* pp)
     if (pp->Flags & (PF_DEAD))
     {
         ChangeActorSect(pp->actor, pp->cursector);
-        actor->spr.Angles.Yaw = pp->angle.ang;
+        actor->spr.Angles.Yaw = pp->angle.ang; // check me out later.
         UpdatePlayerUnderSprite(pp);
         return;
     }
@@ -1896,7 +1896,7 @@ void UpdatePlayerSprite(PLAYER* pp)
 
     UpdatePlayerUnderSprite(pp);
 
-    actor->spr.Angles.Yaw = pp->angle.ang;
+    actor->spr.Angles.Yaw = pp->angle.ang; // check me out later.
 }
 
 //---------------------------------------------------------------------------
@@ -6004,7 +6004,7 @@ void DoPlayerDeathCheckKeys(PLAYER* pp)
         plActor->spr.picnum = plActor->user.State->Pic;
         plActor->spr.picnum = plActor->user.State->Pic;
         plActor->spr.cstat &= ~(CSTAT_SPRITE_YCENTER);
-        plActor->spr.Angles.Yaw = pp->angle.ang;
+        plActor->spr.Angles.Yaw = pp->angle.ang; // check me out later.
 
         DoSpawnTeleporterEffect(plActor);
         PlaySound(DIGI_TELEPORT, pp, v3df_none);
diff --git a/source/games/sw/src/weapon.cpp b/source/games/sw/src/weapon.cpp
index 7fa0c39e5e4..04d4d8a5d31 100644
--- a/source/games/sw/src/weapon.cpp
+++ b/source/games/sw/src/weapon.cpp
@@ -12201,7 +12201,7 @@ int InitSwordAttack(PLAYER* pp)
             bubble = SpawnBubble(pp->actor);
             if (bubble != nullptr)
             {
-                bubble->spr.Angles.Yaw = pp->angle.ang;
+                bubble->spr.Angles.Yaw = pp->angle.ang; // check me out later.
 
 				auto random_amt = RandomAngle(DAngle22_5 / 4) - DAngle22_5 / 8;
 
@@ -12369,7 +12369,7 @@ int InitFistAttack(PLAYER* pp)
             bubble = SpawnBubble(pp->actor);
             if (bubble != nullptr)
             {
-                bubble->spr.Angles.Yaw = pp->angle.ang;
+                bubble->spr.Angles.Yaw = pp->angle.ang; // check me out later.
 
                 auto random_amt = RandomAngle(DAngle22_5 / 4) - DAngle22_5 / 8;