diff --git a/classes.cpp b/classes.cpp
index ba87f453..b3d19540 100644
--- a/classes.cpp
+++ b/classes.cpp
@@ -479,6 +479,7 @@ static constexpr flagtype CF_FACE_UP = Flag(49);
 static constexpr flagtype CF_FACE_SIDE = Flag(50);
 static constexpr flagtype CF_HIGH_THREAT = Flag(51);
 static constexpr flagtype CF_SPAM = Flag(52);
+static constexpr flagtype CF_FROG = Flag(53);
 
 enum eMonster {
   #define MONSTER(a,b,c,d,e,f,g,h) d,
diff --git a/content.cpp b/content.cpp
index 68d50310..852f5c9d 100644
--- a/content.cpp
+++ b/content.cpp
@@ -1616,17 +1616,17 @@ WALL( '#', 0x00C000, "shrub",  waShrub, WF_WALL | WF_HIGHWALL | WF_STDTREE | WF_
   "A strange small tree that cannot be attacked with mundane weapons nor phased though. "
   "It can be vaulted over, though."
   )
-MONSTER('F', 0x60A060, "Giant Frog", moFrog, CF_HIGH_THREAT, RESERVED, moFrog, 
+MONSTER('F', 0x60A060, "Giant Frog", moFrog, CF_HIGH_THREAT | CF_FROG, RESERVED, moFrog,
   "At first, you are shocked by the agility of this frog. Such a large creature "
   "should not be able to jump that quickly!\n\n"
   "Then, you notice the green glow around its legs. This frog must be magical... "
   "it has sacrificed its swimming abilities for superfrog jumping powers."
   )
-MONSTER('F', 0xFFFF80, "Yellow Frog", moPhaser, CF_HIGH_THREAT, RESERVED, moPhaser, 
+MONSTER('F', 0xFFFF80, "Yellow Frog", moPhaser, CF_HIGH_THREAT | CF_FROG, RESERVED, moPhaser,
   "A slightly transparent yellow frog. It has mastered the magical power of phasing through solid "
   "obstacles such as rock."
   )
-MONSTER('F', 0x8080FF, "Blue Frog", moVaulter, CF_HIGH_THREAT, RESERVED, moVaulter, 
+MONSTER('F', 0x8080FF, "Blue Frog", moVaulter, CF_HIGH_THREAT | CF_FROG, RESERVED, moVaulter,
   "This frog is able to vault over the shrubs in the Frog Park, destroying the shrub in the process. "
   "While it can also vault over monsters, it will never hurt the other frogs!"
   )
diff --git a/flags.cpp b/flags.cpp
index 72c4c028..9a67b271 100644
--- a/flags.cpp
+++ b/flags.cpp
@@ -112,6 +112,7 @@ MONFLAGCHECK(isRatling, flag & CF_RATLING)
 MONFLAGCHECK(isGhostMover, flag & CF_GHOSTMOVER)
 MONFLAGCHECK(isPowerMonster, flag & CF_POWER)
 MONFLAGCHECK(hasFacing, flag & CF_FACING)
+MONFLAGCHECK(isFrog, flag & CF_FROG)
 
 ITEMFLAGCHECK(isElementalShard, flag & IF_SHARD)
 ITEMFLAGCHECK(itemBurns, !(flag & IF_FIREPROOF))
diff --git a/help.cpp b/help.cpp
index 1e36aa35..e5deaa90 100644
--- a/help.cpp
+++ b/help.cpp
@@ -705,8 +705,11 @@ EX string generateHelpForMonster(eMonster m) {
     }
   
   eItem it = frog_power(m);
-  if(it)
+  if(it) {
     s += XLAT("\n\nThis Frog uses the power of %the1. You get 5 charges yourself for killing it.", it);
+
+    s += XLAT("\n\nFrogs move first, and after they use their jumping power, they stun adjacent non-frog monsters which are not friendly to the player for 2 turns.");
+    }
     
   if(m == moBat || m == moEagle)
     s += XLAT("\n\nFast flying creatures may attack or go against gravity only in their first move.", m);
diff --git a/monstermove.cpp b/monstermove.cpp
index 107b10f7..b37bd197 100644
--- a/monstermove.cpp
+++ b/monstermove.cpp
@@ -103,6 +103,13 @@ EX void moveEffect(const movei& mi, eMonster m) {
     animateMovement(mi.rev(), LAYER_BOAT);
     tortoise::move_baby(cf, ct);
     }
+
+  if(isFrog(m) && !isNeighbor(cf, ct)) {
+    forCellEx(c1, ct) if(c1->monst && !isFrog(c1->monst) && !isFriendly(c1->monst)) {
+      c1->stuntime = min(c1->stuntime + 2, 7);
+      checkStunKill(c1);
+      }
+    }
   
   #if CAP_COMPLEX2
   if(isDie(m) && mi.proper())
@@ -2050,6 +2057,13 @@ EX void movemonsters() {
 
   specialMoves();
 
+  DEBB(DF_TURN, ("jumpers"));
+  if(havewhat & HF_JUMP) {
+    groupmove(moFrog, 0);
+    groupmove(moVaulter, 0);
+    groupmove(moPhaser, 0);
+    }
+
   DEBB(DF_TURN, ("ghosts"));
   moveghosts();
     
@@ -2075,12 +2089,6 @@ EX void movemonsters() {
   if(havewhat & HF_EAGLES) groupmove(moEagle, MF_NOATTACKS | MF_ONLYEAGLE);
   DEBB(DF_TURN, ("eagles"));
   if(havewhat & HF_REPTILE) groupmove(moReptile, 0);
-  DEBB(DF_TURN, ("jumpers"));
-  if(havewhat & HF_JUMP) {
-    groupmove(moFrog, 0);
-    groupmove(moVaulter, 0);
-    groupmove(moPhaser, 0);
-    }
   DEBB(DF_TURN, ("air"));
   if(havewhat & HF_AIR) {
     airmap.clear();