diff --git a/src/Battling/Flow/ChoiceQueue.cpp b/src/Battling/Flow/ChoiceQueue.cpp
index 1f0d465..8f7b333 100644
--- a/src/Battling/Flow/ChoiceQueue.cpp
+++ b/src/Battling/Flow/ChoiceQueue.cpp
@@ -1 +1,28 @@
 #include "ChoiceQueue.hpp"
+
+bool CreatureLib::Battling::ChoiceQueue::MoveCreatureChoiceNext(CreatureLib::Battling::Creature* creature) {
+    // Find which index the creature choice is at.
+    size_t choiceIndex = -1;
+    for (size_t index = _current; index < _queue.size(); index++) {
+        if (_queue.at(index)->GetUser() == creature) {
+            // If the creature choice is already next up, return.
+            if (index == _current)
+                return false;
+            choiceIndex = index;
+        }
+    }
+    // If the creature has no choice anymore, return.
+    if (choiceIndex == -1)
+        return false;
+
+    // Save the pointer to the creature choice.
+    auto creatureChoice = _queue[choiceIndex];
+    // Starting at the position before the current creature choice, and iterating backwards up till the current choice.
+    for (size_t i = choiceIndex - 1; i >= _current && i != SIZE_MAX; i--) {
+        // Place everything in one spot later.
+        _queue[i + 1] = _queue[i];
+    }
+    // Set the creature choice up next.
+    _queue[_current] = creatureChoice;
+    return true;
+}
diff --git a/src/Battling/Flow/ChoiceQueue.hpp b/src/Battling/Flow/ChoiceQueue.hpp
index 78523a9..8ccf44c 100644
--- a/src/Battling/Flow/ChoiceQueue.hpp
+++ b/src/Battling/Flow/ChoiceQueue.hpp
@@ -21,9 +21,13 @@ namespace CreatureLib::Battling {
             return b;
         }
 
+        BaseTurnChoice* Peek() { return _queue[_current]; }
+
         [[nodiscard]] bool HasNext() const { return _current < _queue.size(); }
 
         std::vector<BaseTurnChoice*>& GetInnerQueue() { return _queue; }
+
+        bool MoveCreatureChoiceNext(Creature* creature);
     };
 }
 
diff --git a/tests/BattleTests/ChoiceQueueTests.cpp b/tests/BattleTests/ChoiceQueueTests.cpp
new file mode 100644
index 0000000..0968d6d
--- /dev/null
+++ b/tests/BattleTests/ChoiceQueueTests.cpp
@@ -0,0 +1,48 @@
+#ifdef TESTS_BUILD
+
+#include "../../extern/catch.hpp"
+#include "../../src/Battling/Flow/ChoiceQueue.hpp"
+#include "../../src/Battling/Models/BattleSide.hpp"
+#include "../../src/Battling/Models/CreateCreature.hpp"
+#include "../../src/Battling/TurnChoices/PassTurnChoice.hpp"
+#include "../TestLibrary/TestLibrary.hpp"
+
+using namespace CreatureLib::Battling;
+
+TEST_CASE("Move creature choice up next.", "[Battling]") {
+    auto lib = TestLibrary::Get();
+    auto c1 = CreateCreature(lib, "testSpecies1", 1).Create();
+    auto c2 = CreateCreature(lib, "testSpecies1", 1).Create();
+    auto c3 = CreateCreature(lib, "testSpecies1", 1).Create();
+    auto c4 = CreateCreature(lib, "testSpecies1", 1).Create();
+
+    std::vector<BaseTurnChoice*> choices = {
+        new PassTurnChoice(c1),
+        new PassTurnChoice(c2),
+        new PassTurnChoice(c3),
+        new PassTurnChoice(c4),
+    };
+
+    auto choiceQueue = ChoiceQueue(choices);
+    CHECK(choiceQueue.MoveCreatureChoiceNext(c4));
+    auto currentChoices = choiceQueue.GetInnerQueue();
+    CHECK(currentChoices[0]->GetUser() == c4);
+    CHECK(currentChoices[1]->GetUser() == c1);
+    CHECK(currentChoices[2]->GetUser() == c2);
+    CHECK(currentChoices[3]->GetUser() == c3);
+
+    CHECK_FALSE(choiceQueue.MoveCreatureChoiceNext(c4));
+    delete choiceQueue.Dequeue();
+    delete choiceQueue.Dequeue();
+    CHECK_FALSE(choiceQueue.MoveCreatureChoiceNext(c1));
+
+    delete choiceQueue.Dequeue();
+    delete choiceQueue.Dequeue();
+
+    delete c1;
+    delete c2;
+    delete c3;
+    delete c4;
+}
+
+#endif
\ No newline at end of file