diff --git a/client/src/views/Credits.vue b/client/src/views/Credits.vue
index 9ef6bfc..e2f476b 100644
--- a/client/src/views/Credits.vue
+++ b/client/src/views/Credits.vue
@@ -27,18 +27,158 @@
         <p class="note">
           Gracias por jugar y contribuir a la comunidad. Si querés colaborar, difundir o proponer mejoras, ¡escribinos!
         </p>
+
+        <!-- Sección de mensajes -->
+        <div class="messages-section">
+          <h2>Mensajes de la comunidad</h2>
+          <div class="message-input-group">
+            <textarea
+              v-model="newMessage"
+              placeholder="Deja tu mensaje, sugerencia o comentario..."
+              class="message-input"
+              maxlength="500"
+              rows="3"
+            ></textarea>
+            <div class="input-actions">
+              <span class="char-count">{{ newMessage.length }}/500</span>
+              <button 
+                @click="submitMessage" 
+                :disabled="!newMessage.trim() || isSubmitting"
+                class="btn-submit"
+              >
+                {{ isSubmitting ? 'Enviando...' : 'Enviar mensaje' }}
+              </button>
+            </div>
+          </div>
+
+          <div v-if="messages.length > 0" class="messages-list">
+            <div class="messages-header">
+              <h3>Mensajes recibidos ({{ messages.length }})</h3>
+              <button @click="downloadMessages" class="btn-download">
+                📥 Descargar .md
+              </button>
+            </div>
+            <div class="messages-container">
+              <div 
+                v-for="(message, index) in messages" 
+                :key="message.id"
+                class="message-item"
+              >
+                <div class="message-meta">
+                  <span class="message-number">#{{ messages.length - index }}</span>
+                  <span class="message-date">{{ formatDate(message.timestamp) }}</span>
+                </div>
+                <div class="message-content">{{ message.content }}</div>
+              </div>
+            </div>
+          </div>
+          <div v-else class="no-messages">
+            No hay mensajes todavía. ¡Sé el primero en dejar uno!
+          </div>
+        </div>
       </div>
     </div>
   </div>
 </template>
 
 <script setup lang="ts">
+import { ref, onMounted } from 'vue';
 import { useRouter } from 'vue-router';
+
+interface Message {
+  id: string;
+  content: string;
+  timestamp: number;
+}
+
 const router = useRouter();
+const newMessage = ref('');
+const messages = ref<Message[]>([]);
+const isSubmitting = ref(false);
+
 function goBack() {
   if (window.history.length > 1) router.back();
   else router.push('/');
 }
+
+async function submitMessage() {
+  if (!newMessage.value.trim() || isSubmitting.value) return;
+  
+  isSubmitting.value = true;
+  try {
+    const response = await fetch(`${import.meta.env.VITE_API_URL || 'http://localhost:3000/api'}/messages`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ content: newMessage.value.trim() })
+    });
+    
+    if (response.ok) {
+      newMessage.value = '';
+      await loadMessages(); // Recargar mensajes
+    } else {
+      console.error('Failed to submit message');
+    }
+  } catch (error) {
+    console.error('Error submitting message:', error);
+  } finally {
+    isSubmitting.value = false;
+  }
+}
+
+async function loadMessages() {
+  try {
+    const response = await fetch(`${import.meta.env.VITE_API_URL || 'http://localhost:3000/api'}/messages`);
+    if (response.ok) {
+      const data = await response.json();
+      messages.value = data.messages || [];
+    }
+  } catch (error) {
+    console.error('Error loading messages:', error);
+    messages.value = [];
+  }
+}
+
+function formatDate(timestamp: number): string {
+  return new Date(timestamp).toLocaleString('es-AR', {
+    year: 'numeric',
+    month: '2-digit',
+    day: '2-digit',
+    hour: '2-digit',
+    minute: '2-digit'
+  });
+}
+
+function downloadMessages() {
+  if (messages.value.length === 0) return;
+  
+  let markdown = '# Mensajes de la comunidad - SnatchGame\n\n';
+  markdown += `Generado el: ${new Date().toLocaleString('es-AR')}\n`;
+  markdown += `Total de mensajes: ${messages.value.length}\n\n---\n\n`;
+  
+  // Ordenar mensajes por timestamp (más recientes primero)
+  const sortedMessages = [...messages.value].sort((a, b) => b.timestamp - a.timestamp);
+  
+  sortedMessages.forEach((message, index) => {
+    markdown += `## Mensaje #${sortedMessages.length - index}\n\n`;
+    markdown += `**Fecha:** ${formatDate(message.timestamp)}\n\n`;
+    markdown += `${message.content}\n\n---\n\n`;
+  });
+  
+  // Crear y descargar el archivo
+  const blob = new Blob([markdown], { type: 'text/markdown;charset=utf-8' });
+  const url = URL.createObjectURL(blob);
+  const link = document.createElement('a');
+  link.href = url;
+  link.download = `snatchgame-mensajes-${new Date().toISOString().split('T')[0]}.md`;
+  document.body.appendChild(link);
+  link.click();
+  document.body.removeChild(link);
+  URL.revokeObjectURL(url);
+}
+
+onMounted(() => {
+  loadMessages();
+});
 </script>
 
 <style scoped>
@@ -69,9 +209,170 @@ function goBack() {
 .list li { margin: 6px 0; }
 .note { margin-top: 12px; font-size: 14px; color: #475569; }
 
+/* Messages section styles */
+.messages-section {
+  margin-top: 32px;
+  border-top: 1px solid rgba(0,0,0,0.1);
+  padding-top: 24px;
+}
+
+.messages-section h2 {
+  color: #334155;
+  margin-bottom: 16px;
+  font-size: 18px;
+}
+
+.message-input-group {
+  margin-bottom: 24px;
+}
+
+.message-input {
+  width: 100%;
+  padding: 12px;
+  border: 2px solid rgba(0,0,0,0.1);
+  border-radius: 8px;
+  resize: vertical;
+  font-family: inherit;
+  font-size: 14px;
+  line-height: 1.4;
+  background: rgba(255,255,255,0.8);
+}
+
+.message-input:focus {
+  outline: none;
+  border-color: #667eea;
+}
+
+.input-actions {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-top: 8px;
+}
+
+.char-count {
+  font-size: 12px;
+  color: #64748b;
+}
+
+.btn-submit {
+  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+  color: white;
+  border: none;
+  padding: 8px 16px;
+  border-radius: 6px;
+  font-weight: 600;
+  cursor: pointer;
+  transition: all 0.2s;
+}
+
+.btn-submit:hover:not(:disabled) {
+  transform: translateY(-1px);
+  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
+}
+
+.btn-submit:disabled {
+  opacity: 0.6;
+  cursor: not-allowed;
+  transform: none;
+}
+
+.messages-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 16px;
+}
+
+.messages-header h3 {
+  margin: 0;
+  color: #334155;
+  font-size: 16px;
+}
+
+.btn-download {
+  background: rgba(255,255,255,0.6);
+  border: 1px solid rgba(0,0,0,0.1);
+  padding: 6px 12px;
+  border-radius: 6px;
+  cursor: pointer;
+  font-size: 12px;
+  font-weight: 600;
+  color: #334155;
+  transition: all 0.2s;
+}
+
+.btn-download:hover {
+  background: rgba(255,255,255,0.8);
+  transform: translateY(-1px);
+}
+
+.messages-container {
+  max-height: 400px;
+  overflow-y: auto;
+  border: 1px solid rgba(0,0,0,0.1);
+  border-radius: 8px;
+  background: rgba(255,255,255,0.4);
+}
+
+.message-item {
+  padding: 12px;
+  border-bottom: 1px solid rgba(0,0,0,0.05);
+}
+
+.message-item:last-child {
+  border-bottom: none;
+}
+
+.message-meta {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 6px;
+  font-size: 12px;
+  color: #64748b;
+}
+
+.message-number {
+  font-weight: 600;
+  color: #667eea;
+}
+
+.message-content {
+  color: #334155;
+  line-height: 1.4;
+  white-space: pre-wrap;
+}
+
+.no-messages {
+  text-align: center;
+  color: #64748b;
+  font-style: italic;
+  padding: 24px;
+  background: rgba(255,255,255,0.3);
+  border-radius: 8px;
+  border: 1px dashed rgba(0,0,0,0.1);
+}
+
 @media (max-width: 640px) {
   .card { padding: 18px; }
   .header h1 { font-size: 18px; }
+  
+  .messages-header {
+    flex-direction: column;
+    gap: 8px;
+    align-items: stretch;
+  }
+  
+  .input-actions {
+    flex-direction: column;
+    gap: 8px;
+    align-items: stretch;
+  }
+  
+  .btn-submit {
+    width: 100%;
+  }
 }
 </style>
 
diff --git a/client/src/views/DemoGame.vue b/client/src/views/DemoGame.vue
index 4a3f78a..8d7c7c6 100644
--- a/client/src/views/DemoGame.vue
+++ b/client/src/views/DemoGame.vue
@@ -82,6 +82,9 @@
         <div class="icon">⏸️</div>
         <div class="title">Juego en pausa</div>
         <div class="hint">Esperando a que ambos jugadores estén conectados…</div>
+        <div class="actions">
+          <button class="btn btn-leave" @click="leaveGame">Salir del Juego</button>
+        </div>
       </div>
     </div>
   </div>
@@ -489,4 +492,5 @@ async function leaveGame() {
 .pause-box .icon { font-size: 48px; margin-bottom: 8px; }
 .pause-box .title { font-weight: 800; font-size: 20px; }
 .pause-box .hint { margin-top: 6px; color:#666; font-size: 14px; }
+.pause-box .actions { margin-top: 16px; }
 </style>
diff --git a/client/src/views/Game.vue b/client/src/views/Game.vue
index 334b0f1..658ce28 100644
--- a/client/src/views/Game.vue
+++ b/client/src/views/Game.vue
@@ -47,6 +47,9 @@
           <span class="pause-icon">⏸️</span>
           <h2>Game Paused</h2>
           <p>Waiting for players to reconnect...</p>
+          <div class="actions">
+            <button @click="leaveGame" class="btn btn-leave">Leave Game</button>
+          </div>
         </div>
       </div>
 
diff --git a/client/src/views/Lobby.vue b/client/src/views/Lobby.vue
index ffd44ce..23b523a 100644
--- a/client/src/views/Lobby.vue
+++ b/client/src/views/Lobby.vue
@@ -31,6 +31,16 @@
       </h1>
       <div class="subtitle">Arena de intercambio social</div>
 
+      <!-- Error notification for reconnection issues -->
+      <div v-if="reconnectionError" class="error-notification">
+        <div class="error-icon">⚠️</div>
+        <div class="error-content">
+          <div class="error-title">No se pudo reconectar a la partida</div>
+          <div class="error-message">{{ reconnectionErrorMessage }}</div>
+        </div>
+        <button @click="dismissError" class="btn-dismiss-error">✕</button>
+      </div>
+
       <div class="player-section">
         <div class="name-input-group" v-if="!nameConfirmed || editingName">
           <input
@@ -107,6 +117,10 @@ const inputName = ref('');
 const isJoining = ref(false);
 const colorInput = ref('#667eea');
 const qrCanvas = ref<HTMLCanvasElement>();
+
+// Reconnection error state
+const reconnectionError = ref(false);
+const reconnectionErrorMessage = ref('');
 const showInstallBanner = ref(false);
 const canPromptInstall = ref(false);
 let deferredPrompt: any = null;
@@ -204,8 +218,18 @@ onMounted(async () => {
           colyseusService.lobbyRoom.value = null;
         }
         await router.push(`/${routeUuid.value}/demo`);
-      } catch (error) {
+      } catch (error: any) {
         console.error('Reconnection failed:', error);
+        
+        // Check if it's a reconnection token error
+        const errorMessage = error?.message || String(error);
+        if (errorMessage.includes('reconnection token invalid') || errorMessage.includes('expired')) {
+          reconnectionError.value = true;
+          reconnectionErrorMessage.value = 'Otro jugador ya está usando este UUID. Si eres tú en otro dispositivo, cierra esa sesión primero.';
+        } else {
+          reconnectionError.value = true;
+          reconnectionErrorMessage.value = 'Error al reconectar: ' + errorMessage;
+        }
       }
     });
 
@@ -447,6 +471,11 @@ function goToSelector() {
   router.push('/');
 }
 
+function dismissError() {
+  reconnectionError.value = false;
+  reconnectionErrorMessage.value = '';
+}
+
 async function triggerInstall() {
   try {
     if (!deferredPrompt) return;
@@ -591,6 +620,56 @@ box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
   font-size: 1.2rem;
 }
 
+/* Error notification styles */
+.error-notification {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  margin: 20px 0;
+  padding: 16px;
+  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
+  border: 1px solid #fca5a5;
+  border-radius: 12px;
+  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.15);
+}
+
+.error-icon {
+  font-size: 24px;
+  flex-shrink: 0;
+}
+
+.error-content {
+  flex: 1;
+}
+
+.error-title {
+  font-weight: 700;
+  color: #991b1b;
+  margin-bottom: 4px;
+}
+
+.error-message {
+  color: #dc2626;
+  font-size: 14px;
+  line-height: 1.4;
+}
+
+.btn-dismiss-error {
+  background: none;
+  border: none;
+  font-size: 18px;
+  color: #dc2626;
+  cursor: pointer;
+  padding: 4px;
+  border-radius: 4px;
+  transition: background-color 0.2s;
+  flex-shrink: 0;
+}
+
+.btn-dismiss-error:hover {
+  background: rgba(220, 38, 38, 0.1);
+}
+
 .player-section {
   margin: 30px 0;
   padding: 20px;
diff --git a/client/src/views/UuidSelector.vue b/client/src/views/UuidSelector.vue
index bc60d29..2158078 100644
--- a/client/src/views/UuidSelector.vue
+++ b/client/src/views/UuidSelector.vue
@@ -37,6 +37,9 @@
         <button @click="goToLeaderboard" class="qa-btn">
           📈 Estadísticas
         </button>
+        <button @click="goToCredits" class="qa-btn">
+          👨‍💻 Créditos
+        </button>
       </div>
 
       <div class="search-container">
@@ -353,6 +356,10 @@ function goToLeaderboard() {
   router.push('/leaderboard');
 }
 
+function goToCredits() {
+  router.push('/credits');
+}
+
 // Context menu functions
 function showContextMenu(event: MouseEvent, uuidInfo: UuidInfo) {
   contextMenu.value = {