diff --git a/source/exhumed/src/exhumed.cpp b/source/exhumed/src/exhumed.cpp
index fbb98be86..75c7ea791 100644
--- a/source/exhumed/src/exhumed.cpp
+++ b/source/exhumed/src/exhumed.cpp
@@ -1948,7 +1948,7 @@ void DrawClock()
 
     tileLoad(kTile3603);
 
-    nRedTicks = 0;
+//    nRedTicks = 0;
     memset((void*)waloff[kTile3603], -1, 4096);
 
     if (lCountDown / 30 != nClockVal)
@@ -2112,13 +2112,13 @@ static void GameMove(void)
             if (nRedTicks <= 0) {
                 DoRedAlert(0);
             }
+        }
 
-            nAlarmTicks--;
-            nButtonColor--;
+        nAlarmTicks--;
+        nButtonColor--;
 
-            if (nAlarmTicks <= 0) {
-                DoRedAlert(1);
-            }
+        if (nAlarmTicks <= 0) {
+            DoRedAlert(1);
         }
     }
 
diff --git a/source/exhumed/src/menu.cpp b/source/exhumed/src/menu.cpp
index f34549619..2922a8f7f 100644
--- a/source/exhumed/src/menu.cpp
+++ b/source/exhumed/src/menu.cpp
@@ -39,7 +39,7 @@ short nCinemaSeen[30];
 // this might be static within the DoPlasma function?
 uint8_t plasmaBuffer[25600];
 
-uint8_t energytile[4356] = {0};
+uint8_t energytile[66 * 66] = {0};
 
 uint8_t cinemapal[768];
 short nLeft[50] = {0};
@@ -154,7 +154,7 @@ void DoEnergyTile()
 
     if (nSmokeSparks)
     {
-        uint8_t *c = &energytile[67]; // TODO - checkme
+        uint8_t *c = &energytile[67]; // skip a line
         uint8_t *ptrW = (uint8_t*)waloff[kEnergy2];
 
         for (i = 0; i < 64; i++)
@@ -219,6 +219,8 @@ void DoEnergyTile()
                         al = cl;
                     }
 
+                    cl = al;
+
                     if (al <= 159) {
                         *ptrW = 96;
                         //continue;
@@ -241,7 +243,7 @@ void DoEnergyTile()
             c += 2;
         }
 
-        c = &energytile[67]; // TODO - checkme
+        c = &energytile[67];
         ptrW = (uint8_t*)waloff[kEnergy2];
 
         for (i = 0; i < 64; i++)
@@ -255,11 +257,11 @@ void DoEnergyTile()
         
         for (i = 0; i < 4096; i++)
         {
-            if (*ptrW == 96) {
+            if ((*ptrW) == 96) {
                 *ptrW = 255; // -1?
             }
             
-            ptrW ++;
+            ptrW++;
         }
 
         word_9AB5B--;
@@ -273,14 +275,13 @@ void DoEnergyTile()
             val *= 2;
             val += randSize2;
 
-            energytile[val] = 195;
+            energytile[val] = 175;
             word_9AB5B = 1;
         }
         tileInvalidate(kEnergy2, -1, -1);
     }
 }
 
-//int TILE_4092 = kTile4092;
 int nPlasmaTile = kTile4092;
 
 #define kPlasmaWidth	320
diff --git a/source/exhumed/src/object.cpp b/source/exhumed/src/object.cpp
index 395b00732..69e063551 100644
--- a/source/exhumed/src/object.cpp
+++ b/source/exhumed/src/object.cpp
@@ -1329,7 +1329,6 @@ int BuildFireBall(int nSprite, int a, int b)
     return BuildTrap(nSprite, 1, a, b);
 }
 
-// Confirmed 100% correct with original .exe
 int BuildSpark(int nSprite, int nVal)
 {
     int var_14 = insertsprite(sprite[nSprite].sectnum, 0);
@@ -1345,9 +1344,9 @@ int BuildSpark(int nSprite, int nVal)
     sprite[var_14].cstat = 0;
     sprite[var_14].shade = -127;
     sprite[var_14].pal = 1;
-    sprite[var_14].xrepeat = 50;
     sprite[var_14].xoffset = 0;
     sprite[var_14].yoffset = 0;
+    sprite[var_14].xrepeat = 50;
     sprite[var_14].yrepeat = 50;
 
     if (nVal >= 2)
@@ -1357,13 +1356,13 @@ int BuildSpark(int nSprite, int nVal)
 
         if (nVal == 3)
         {
-            sprite[var_14].yrepeat = 120;
             sprite[var_14].xrepeat = 120;
+            sprite[var_14].yrepeat = 120;  
         }
         else
         {
-            sprite[var_14].yrepeat = sprite[var_14].xrepeat + 15;
-            sprite[var_14].xrepeat = sprite[var_14].xrepeat + 15;
+            sprite[var_14].xrepeat = sprite[nSprite].xrepeat + 15;
+            sprite[var_14].yrepeat = sprite[nSprite].xrepeat + 15;
         }
     }
     else
@@ -1399,9 +1398,9 @@ int BuildSpark(int nSprite, int nVal)
     return var_14;
 }
 
-void FuncSpark(int a, int b, int c)
+void FuncSpark(int a, int b, int nRun)
 {
-    int nSprite = RunData[c].nVal;
+    int nSprite = RunData[nRun].nVal;
     assert(nSprite >= 0 && nSprite < kMaxSprites);
 
     int nMessage = a & 0x7F0000;
@@ -1417,7 +1416,7 @@ void FuncSpark(int a, int b, int c)
     {
         sprite[nSprite].yrepeat -= 2;
 
-        if (sprite[nSprite].picnum == kTile986 && sprite[nSprite].xrepeat & 2)
+        if (sprite[nSprite].picnum == kTile986 && (sprite[nSprite].xrepeat & 2))
         {
             BuildSpark(nSprite, 2);
         }
@@ -1438,9 +1437,9 @@ void FuncSpark(int a, int b, int c)
         }
     }
 
-    sprite[nSprite].zvel = 0;
-    sprite[nSprite].yvel = 0;
     sprite[nSprite].xvel = 0;
+    sprite[nSprite].yvel = 0;
+    sprite[nSprite].zvel = 0;
 
     if (sprite[nSprite].picnum > kTile3000) {
         nSmokeSparks--;
@@ -1549,23 +1548,17 @@ int BuildEnergyBlock(short nSector)
 {
     short startwall = sector[nSector].wallptr;
 
-    int i = 0;
     int x = 0;
     int y = 0;
 
-    while (1)
+    for (int i = 0; i < sector[nSector].wallnum; i++)
     {
-        if (i >= sector[nSector].wallnum) {
-            break;
-        }
-
         x += wall[startwall + i].x;
         y += wall[startwall + i].y;
 
+ //       wall[startwall + i].picnum = kTile3621;
         wall[startwall + i].pal = 0;
         wall[startwall + i].shade = 50;
-
-        i++;
     }
 
     int xAvg = x / 2;
@@ -1735,11 +1728,10 @@ void ExplodeEnergyBlock(int nSprite)
     changespritestat(nSprite, 0);
 }
 
-void FuncEnergyBlock(int a, int b, int nRun)
+void FuncEnergyBlock(int a, int nDamage, int nRun)
 {
     short nSprite = RunData[nRun].nVal;
 
-    int nDamage = b;
     int nMessage = a & 0x7F0000;
 
     switch (nMessage)
@@ -1766,8 +1758,8 @@ void FuncEnergyBlock(int a, int b, int nRun)
 
             nDamage = runlist_CheckRadialDamage(nSprite);
 
+            // restore previous values
             sector[nSector].floorz = nFloorZ;
-
             sprite[nSprite].z += 256;
 
             if (nDamage <= 0) {
@@ -2135,7 +2127,6 @@ void BuildDrip(int nSprite)
     sprite[nSprite].cstat = 0x8000u;
 }
 
-// Confirmed 100% correct with original .exe
 void DoDrips()
 {
     int i;