diff --git a/gitadora@asphyxia/utils/extrastage.ts b/gitadora@asphyxia/utils/extrastage.ts
index ab8a109..8e490e6 100644
--- a/gitadora@asphyxia/utils/extrastage.ts
+++ b/gitadora@asphyxia/utils/extrastage.ts
@@ -3,6 +3,7 @@ import { getVersion } from ".";
 interface EncoreStageData {
     level: number
     musics: number[]
+    unlock_challenge?: number[]
 }
 
 export function getEncoreStageData(info: EamuseInfo): EncoreStageData {
@@ -12,10 +13,10 @@ export function getEncoreStageData(info: EamuseInfo): EncoreStageData {
             return {
                 level: 7,
                 musics: [ //TODO: check special encore works.
-                    2587, 2531, 2612, 2622, 2686, 
+                    2587, 2531, 2612, 2622, 2686,
                     305, 602, 703, 802, 902, 1003, 1201, 1400, 1712, 1916, 2289, 2631, // DD13
                     1704, 1811, 2121, 2201, 2624, // Soranaki 
-                    2341, 2020, 2282, 1907, 2666  // Stargazer
+                    1907, 2020, 2282, 2341, 2666  // Stargazer
                 ]
             }
         case 'exchain':
@@ -25,6 +26,13 @@ export function getEncoreStageData(info: EamuseInfo): EncoreStageData {
                     2498, 2513, 2500, 2529, 2546, 2549, 2548, 2560, 2568, 2576, 5020, 5032, 5031, 5033
                 ]
             }
+        case 'matixx':
+            return {
+                level:13,
+                musics: [
+                    2432, 2445, 2456, 2441, 2444, 2381, 2471, 2476, 2486, 2496, 2497, 2499, 2498
+                ]
+            }
         default:
             return fallback
     }