diff --git a/Platform/Apple/virtual/src/core/mem.s b/Platform/Apple/virtual/src/core/mem.s
index e721ad63..0eab4edf 100644
--- a/Platform/Apple/virtual/src/core/mem.s
+++ b/Platform/Apple/virtual/src/core/mem.s
@@ -747,15 +747,8 @@ gcHash_chk: !zone
 	rts
 .corrup	jmp heapCorrupt
 
-!if DEBUG = 0 {
-debugOnly:
-	jsr inlineFatal : !text "DebugOnly",0	
-}
-
 ; Verify integrity of memory manager structures
 memCheck: !zone
-!if DEBUG = 0 { jmp debugOnly }
-!if DEBUG {
 	jsr heapCheck	; heap check (if there is one)
 	ldx #0		; check main bank
 	jsr .chk
@@ -811,7 +804,6 @@ heapCheck: !zone
 	cmp heapEndPg	; or >= than end of heap
 	bcc .tscan
 	; fall through to heapCorrupt...
-} ; if DEBUG
 
 heapCorrupt:
        +prWord pTmp
diff --git a/Platform/Apple/virtual/src/plasma/combat.pla b/Platform/Apple/virtual/src/plasma/combat.pla
index a74d29fa..65f76dd6 100644
--- a/Platform/Apple/virtual/src/plasma/combat.pla
+++ b/Platform/Apple/virtual/src/plasma/combat.pla
@@ -886,12 +886,13 @@ def collectLootAndXP()#2
             pItem=>w_count = rollDiceWithLuck(pItem=>r_lootAmount, global=>p_players->b_luck)
           fin
           if addItem(global=>p_players, pItem)
+            displayStr("You find ")
             if pItem->t_type == TYPE_FANCY_ITEM and pItem=>w_count > 1
               isPlural = TRUE
-              displayf2("You find %d %s! ", pItem=>w_count, pItem=>s_name)
+              displayf2("%d %s! ", pItem=>w_count, pItem=>s_name)
             else
               isPlural = FALSE
-              displayf2("You find %s%s! ", anOrA(pItem=>s_name), pItem=>s_name)
+              displayf2("%s%s! ", anOrA(pItem=>s_name), pItem=>s_name)
             fin
           fin
           lootedItem = TRUE
diff --git a/Platform/Apple/virtual/src/plasma/diskops.pla b/Platform/Apple/virtual/src/plasma/diskops.pla
index 8e5e503f..f0c85e88 100644
--- a/Platform/Apple/virtual/src/plasma/diskops.pla
+++ b/Platform/Apple/virtual/src/plasma/diskops.pla
@@ -226,6 +226,9 @@ end
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 def saveInternal()#0
 
+  // Never save corrupted heap
+  mmgr(CHECK_MEM, 0)
+
   // Perform garbage collection and record the size of the heap so we can restore it correctly
   global=>w_heapSize = mmgr(HEAP_COLLECT, 0) - HEAP_BOTTOM
 
@@ -257,6 +260,7 @@ def loadInternal()#1
   fin
   memcpy(LOAD_SAVE_BUF, HEAP_BOTTOM, HEAP_SIZE)  // low mem to LC
   initHeap(p_loaded=>w_heapSize)
+  mmgr(CHECK_MEM, 0) // make sure heap is valid
   return TRUE
 end
 
diff --git a/Platform/Apple/virtual/src/plasma/gameloop.pla b/Platform/Apple/virtual/src/plasma/gameloop.pla
index 2cc8aeb9..720355ac 100644
--- a/Platform/Apple/virtual/src/plasma/gameloop.pla
+++ b/Platform/Apple/virtual/src/plasma/gameloop.pla
@@ -1276,7 +1276,7 @@ end
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 export def rollDiceWithLuck(encoded, luck)#1
   byte i, nDice, dieSize, add, droll, result
-  nDice = encoded >> 12
+  nDice = (encoded >> 12) & $F  // must mask off replicated hi-bits
   dieSize = (encoded >> 8) & $F
   add = encoded & $F
   result = add
@@ -1291,8 +1291,7 @@ export def rollDiceWithLuck(encoded, luck)#1
         droll = min(droll, (rand16() % dieSize) + 1)
       fin
     fin
-    add = (rand16() % dieSize) + 1
-    result = result + add
+    result = result + droll
   next
   return result
 end
@@ -2452,6 +2451,7 @@ def doCombat(mapCode, backUpOnFlee)#1
   // Handled in a separate module. Clear enemies out of the heap when finished.
   result = loadEngine(MOD_COMBAT)=>combat_zoneEncounter(mapCode)
   global=>p_enemyGroups = NULL
+  mmgr(CHECK_MEM, 0)
   mmgr(HEAP_COLLECT, 0)
 
   if (result == -99)
diff --git a/Platform/Apple/virtual/src/plasma/party.pla b/Platform/Apple/virtual/src/plasma/party.pla
index fc405134..e879d85c 100644
--- a/Platform/Apple/virtual/src/plasma/party.pla
+++ b/Platform/Apple/virtual/src/plasma/party.pla
@@ -374,10 +374,21 @@ def showItemMenu(item)#0
   clearMenuRect()
   type = item->t_type
   if type == TYPE_ARMOR or type == TYPE_WEAPON
-    rawDisplayStr("E)quip/unequip, ")
-  fin
-  if type == TYPE_PLAIN_ITEM or type == TYPE_FANCY_ITEM
+    if !(item->b_flags & ITEM_FLAG_EQUIP)
+      rawDisplayStr("un-")
+    fin
+    rawDisplayStr("E)quip")
+  elsif type == TYPE_PLAIN_ITEM or type == TYPE_FANCY_ITEM
     rawDisplayStr("U)se, ")
+    if type == TYPE_FANCY_ITEM and item=>w_count > 1
+      rawDisplayStr("S)plit, ")
+    fin
+    if type == TYPE_FANCY_ITEM and item=>w_count > 0
+      rawDisplayStr("J)oin, ")
+    fin
+  fin
+  if global=>p_players=>p_nextObj
+    rawDisplayStr("T)rade, ")
   fin
   rawDisplayStr("D)rop or [Esc]")
 end
@@ -404,6 +415,24 @@ def doEquip(player, item)#0
   calcPlayerArmor(player)
 end
 
+// Trade an item to another player/npc
+def doTrade(player, item)#1
+  fatal("not yet: trade")
+  return 0
+end
+
+// Split a stack of stackables
+def doSplit(player, item)#1
+  fatal("not yet: split")
+  return 0
+end
+
+// Join a stack of stackables
+def doJoin(player, item)#1
+  fatal("not yet: join")
+  return 0
+end
+
 // Select an item and use it. Returns item if it needs to be processed by outer loop, else NULL
 def doUse(player, item)#1
   word pMod, oldVal, newVal
@@ -505,6 +534,24 @@ def interactWithItem(player, item)#1
           beep
         fin
         break
+      // Trade an item
+      is 'T'
+        if global=>p_players=>p_nextObj
+          return doTrade(player, item)
+        fin
+        break
+      // Split a stack
+      is 'S'
+        if item->t_type == TYPE_FANCY_ITEM and item=>w_count > 1
+          return doSplit(player, item)
+        fin
+        break
+      // Join stacks
+      is 'J'
+        if item->t_type == TYPE_FANCY_ITEM and item=>w_count > 0
+          return doJoin(player, item)
+        fin
+        break
       // Destroy an item
       is 'D'
         if doDestroy(player, item); return NULL; fin
@@ -624,6 +671,8 @@ def _showPlayerSheet(player_num)#1  // funcTbl functions always have to return a
         fin
         break
       is $1B // Esc
+        mmgr(CHECK_MEM, 0)
+        mmgr(HEAP_COLLECT, 0)
         return NULL
       otherwise
         if sel == 'X' and mode <> 'I'
@@ -656,7 +705,7 @@ def _showPlayerSheet(player_num)#1  // funcTbl functions always have to return a
         fin
     wend
   until 0
-  return NULL
+  return NULL // never reached
 end
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
diff --git a/Platform/Apple/virtual/src/plasma/store.pla b/Platform/Apple/virtual/src/plasma/store.pla
index 3b2be8b9..a843312d 100644
--- a/Platform/Apple/virtual/src/plasma/store.pla
+++ b/Platform/Apple/virtual/src/plasma/store.pla
@@ -83,6 +83,7 @@ def displayBuyPage(pItemTbl, markupRatio, pageNum, nPages)#1
   word pFunc, pItem
 
   displayBuyTitle(pageNum, nPages)
+  mmgr(CHECK_MEM, 0)
   mmgr(HEAP_COLLECT, 0)
 
   pFunc = pItemTbl + ((pageNum*PAGE_SIZE) << 1)
@@ -246,6 +247,7 @@ def _buyFromStore(storeCode, profitPercent)#1
   loop
 
   unloadExtraModules()
+  mmgr(CHECK_MEM, 0)
   return mmgr(HEAP_COLLECT, 0)
 end
 
@@ -367,6 +369,7 @@ def _sellToStore(profitPercent)#1
   loop
 
   unloadExtraModules()
+  mmgr(CHECK_MEM, 0)
   return mmgr(HEAP_COLLECT, 0)
 end