diff --git a/src/main/java/com/uniovi/entities/Player.java b/src/main/java/com/uniovi/entities/Player.java
index b70a0d5f..97b93fd2 100644
--- a/src/main/java/com/uniovi/entities/Player.java
+++ b/src/main/java/com/uniovi/entities/Player.java
@@ -39,8 +39,6 @@ public class Player implements JsonEntity {
     @Column
     private String scoreMultiplayerCode;
 
-    //@ManyToMany
-    //private Set<MultiplayerSession> multiplayerSessions = new HashSet<>();
 
     @ManyToMany(cascade = CascadeType.MERGE, fetch = FetchType.EAGER)
     private Set<Role> roles = new HashSet<>();
diff --git a/src/main/java/com/uniovi/services/MultiplayerSessionService.java b/src/main/java/com/uniovi/services/MultiplayerSessionService.java
index 440a263d..c0932339 100644
--- a/src/main/java/com/uniovi/services/MultiplayerSessionService.java
+++ b/src/main/java/com/uniovi/services/MultiplayerSessionService.java
@@ -13,8 +13,6 @@
 @Service
 public interface MultiplayerSessionService {
 
-    //Page<MultiplayerSession> getMultiplayerPlayerRanking(Pageable pageable, int multiplayerCode);
-
     Map<Player, Integer> getPlayersWithScores(int multiplayerCode);
     void multiCreate(String code, Long id);
 
diff --git a/src/main/java/com/uniovi/services/impl/MultiplayerSessionImpl.java b/src/main/java/com/uniovi/services/impl/MultiplayerSessionImpl.java
index 05acec97..a690d37d 100644
--- a/src/main/java/com/uniovi/services/impl/MultiplayerSessionImpl.java
+++ b/src/main/java/com/uniovi/services/impl/MultiplayerSessionImpl.java
@@ -5,6 +5,7 @@
 import com.uniovi.repositories.MultiplayerSessionRepository;
 import com.uniovi.repositories.PlayerRepository;
 import com.uniovi.services.MultiplayerSessionService;
+import jakarta.transaction.Transactional;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Service;
@@ -24,6 +25,7 @@ public MultiplayerSessionImpl(PlayerRepository playerRepository, MultiplayerSess
     }
 
     @Override
+    //@Transactional
     public Map<Player, Integer> getPlayersWithScores(int multiplayerCode) {
         MultiplayerSession session = multiplayerSessionRepository.findByMultiplayerCode(String.valueOf(multiplayerCode));
         Map<Player, Integer> playerScores = session.getPlayerScores();
@@ -48,6 +50,7 @@ public void multiCreate(String code, Long id) {
     }
 
     @Override
+    //@Transactional
     public void addToLobby(String code, Long id) {
         Player p = playerRepository.findById(id).get();
         MultiplayerSession ms=multiplayerSessionRepository.findByMultiplayerCode(code);
@@ -56,6 +59,7 @@ public void addToLobby(String code, Long id) {
     }
 
     @Override
+    //@Transactional
     public void changeScore(String code, Long id, int score) {
         Player p = playerRepository.findById(id).get();
         MultiplayerSession ms=multiplayerSessionRepository.findByMultiplayerCode(code);
diff --git a/src/main/java/com/uniovi/services/impl/QuestionServiceImpl.java b/src/main/java/com/uniovi/services/impl/QuestionServiceImpl.java
index 79e4c218..6225e8b6 100644
--- a/src/main/java/com/uniovi/services/impl/QuestionServiceImpl.java
+++ b/src/main/java/com/uniovi/services/impl/QuestionServiceImpl.java
@@ -108,6 +108,7 @@ public List<Question> getRandomQuestions(int num) {
         return res;
     }
 
+
     @Override
     public List<Question> getRandomMultiplayerQuestions(int num, int code) {
         List<Question> allQuestions = questionRepository.findAll().stream()
diff --git a/src/test/java/com/uniovi/Wiq_UnitTests.java b/src/test/java/com/uniovi/Wiq_UnitTests.java
index 52494d87..521a34ff 100644
--- a/src/test/java/com/uniovi/Wiq_UnitTests.java
+++ b/src/test/java/com/uniovi/Wiq_UnitTests.java
@@ -75,6 +75,8 @@ public class Wiq_UnitTests {
     private GameSessionService gameSessionService;
     @Autowired
     private InsertSampleDataService sampleDataService;
+    @Autowired
+    private MultiplayerSessionService multiplayerSessionService;
 
     @Autowired
     PlayerRepository playerRepository;
@@ -90,12 +92,18 @@ public class Wiq_UnitTests {
     GameSessionRepository gameSessionRepository;
     @Autowired
     QuestionRepository questionRepository;
+    @Autowired
+    MultiplayerSessionRepository multiplayerSessionRepository;
 
     private final HttpClient httpClient = HttpClient.newHttpClient();
 
     private Player createPlayer(){
         return new Player("name","test@email.com","password");
     }
+    private Player createDiferentPlayer(String word){
+        return new Player("name"+word,word+"test@email.com","password");
+
+    }
     @Test
     @Order(1)
     public void testPlayerService() {
@@ -1555,6 +1563,88 @@ public void testDeleteQuestion() throws IOException, InterruptedException, JSONE
         Assertions.assertTrue(deletedQuestion.isEmpty());
     }
 
+    @Test
+    @Order(97)
+    public void testGetPlayersWithScores() {
+        Player player1 = playerRepository.save(createDiferentPlayer("aa"));
+        Player player2 = playerRepository.save(createDiferentPlayer("bb"));
+        Player player3 = playerRepository.save(createDiferentPlayer("cc"));
+
+        MultiplayerSession session = new MultiplayerSession("123",player3);
+        Map<Player, Integer> playerScores = new HashMap<>();
+        playerScores.put(player1, 10);
+        playerScores.put(player2, 5);
+        session.setPlayerScores(playerScores);
+
+        multiplayerSessionRepository.save(session);
+
+        Map<Player, Integer> result = multiplayerSessionService.getPlayersWithScores(123);
+
+        assertNotNull(result);
+        Assertions.assertEquals(2, result.size());
+    }
+
+    @Test
+    @Order(98)
+    public void testMultiCreate() {
+        // Given
+        Long playerId = 1L;
+        Player player = createPlayer();
+        player.setId(playerId);
+
+        String code = "123";
+        playerRepository.findById(playerId);
+        multiplayerSessionService.multiCreate(code, playerId);
+
+        MultiplayerSession ms = multiplayerSessionRepository.findByMultiplayerCode("123");
+        Assertions.assertNotNull(ms);
+        Assertions.assertEquals("123",ms.getMultiplayerCode());
+    }
+
+    @Test
+    @Order(99)
+    public void testAddToLobby() {
+
+        Long playerId = 1L;
+        Player player = createPlayer();
+        player.setId(playerId);
+
+        String code = "123";
+        MultiplayerSession multiplayerSession = new MultiplayerSession();
+        multiplayerSession.setMultiplayerCode(code);
+
+        playerRepository.save(player);
+        multiplayerSessionRepository.save(multiplayerSession);
+
+        multiplayerSessionService.addToLobby(code, playerId);
+
+        MultiplayerSession ms = multiplayerSessionRepository.findByMultiplayerCode(code);
+        Assertions.assertNotNull(ms);
+        Assertions.assertEquals("123",ms.getMultiplayerCode());
+    }
+
+    @Test
+    @Order(100)
+    public void testChangeScore() {
+        Long playerId = 1L;
+        Player player = createPlayer();
+        player.setId(playerId);
+
+        String code = "123";
+        int newScore = 100;
+        MultiplayerSession multiplayerSession = new MultiplayerSession();
+        multiplayerSession.setMultiplayerCode(code);
+        multiplayerSession.addPlayer(player);
+
+        playerRepository.save(player);
+        multiplayerSessionRepository.save(multiplayerSession);
+
+        multiplayerSessionService.changeScore(code, playerId, newScore);
+
+        multiplayerSession = multiplayerSessionRepository.findByMultiplayerCode("123");
+        Assertions.assertNotNull(multiplayerSession);
+    }
+
     /**
      * Sends an HTTP request to the API
      * @param method HTTP method