diff --git a/gdxapp4d-lib-bassboonyd/src/main/java/love/distributedrebirth/bassboonyd/BãßBȍőnLoad殭屍.java b/gdxapp4d-lib-bassboonyd/src/main/java/love/distributedrebirth/bassboonyd/BãßBȍőnLoad殭屍.java
index e750c715..681b4b61 100644
--- a/gdxapp4d-lib-bassboonyd/src/main/java/love/distributedrebirth/bassboonyd/BãßBȍőnLoad殭屍.java
+++ b/gdxapp4d-lib-bassboonyd/src/main/java/love/distributedrebirth/bassboonyd/BãßBȍőnLoad殭屍.java
@@ -120,7 +120,7 @@ public final class BãßBȍőnLoad殭屍 {
 		}
 	}
 	
-	private static Set<Class<?>> walkInterfaces(Class<?> clazz, Set<Class<?>> result) {
+	public static Set<Class<?>> walkInterfaces(Class<?> clazz, Set<Class<?>> result) {
 		while (clazz != null) {
 			for (Class<?> next : clazz.getInterfaces()) {
 				if (result.add(next)) {
diff --git a/gdxapp4d-lib-bassboonyd/src/main/java/love/distributedrebirth/bassboonyd/DefaultBãßBȍőn.java b/gdxapp4d-lib-bassboonyd/src/main/java/love/distributedrebirth/bassboonyd/DefaultBãßBȍőn.java
index 07304bd6..af6c6df0 100644
--- a/gdxapp4d-lib-bassboonyd/src/main/java/love/distributedrebirth/bassboonyd/DefaultBãßBȍőn.java
+++ b/gdxapp4d-lib-bassboonyd/src/main/java/love/distributedrebirth/bassboonyd/DefaultBãßBȍőn.java
@@ -1,12 +1,14 @@
 package love.distributedrebirth.bassboonyd;
 
+import love.distributedrebirth.bassboonyd.info.BãßBȍőnAnnotationʸᴰ;
 import love.distributedrebirth.bassboonyd.info.BãßBȍőnAuthorʸᴰ;
 import love.distributedrebirth.bassboonyd.info.BãßBȍőnNameʸᴰ;
 import love.distributedrebirth.bassboonyd.info.BãßBȍőnPackageʸᴰ;
 
 public interface DefaultBãßBȍőn<T, K extends BãßBȍőnCoffinStoreKeyʸᴰ> extends
 	BãßBȍőn<T,K>,
-	BãßBȍőnAuthorʸᴰ<T,K>,
 	BãßBȍőnNameʸᴰ<T,K>,
-	BãßBȍőnPackageʸᴰ<T,K> {
+	BãßBȍőnAuthorʸᴰ<T,K>,
+	BãßBȍőnPackageʸᴰ<T,K>,
+	BãßBȍőnAnnotationʸᴰ<T,K> {
 }
diff --git a/gdxapp4d-lib-bassboonyd/src/main/java/love/distributedrebirth/bassboonyd/info/BãßBȍőnAnnotationʸᴰ.java b/gdxapp4d-lib-bassboonyd/src/main/java/love/distributedrebirth/bassboonyd/info/BãßBȍőnAnnotationʸᴰ.java
new file mode 100644
index 00000000..30262454
--- /dev/null
+++ b/gdxapp4d-lib-bassboonyd/src/main/java/love/distributedrebirth/bassboonyd/info/BãßBȍőnAnnotationʸᴰ.java
@@ -0,0 +1,34 @@
+package love.distributedrebirth.bassboonyd.info;
+
+import java.lang.annotation.Annotation;
+import java.util.LinkedHashSet;
+
+import love.distributedrebirth.bassboonyd.BãßBȍőn;
+import love.distributedrebirth.bassboonyd.BãßBȍőnCoffinStoreKeyʸᴰ;
+import love.distributedrebirth.bassboonyd.BãßBȍőnLoad殭屍;
+import love.distributedrebirth.bassboonyd.BãßBȍőnꝐŕḯṿª₮ḕ;
+import love.distributedrebirth.bassboonyd.BãßBȍőnꝐŕḯṿª₮ḕInitPhaseʸᴰ;
+import love.distributedrebirth.bassboonyd.BãßBȍőnꝐŕḯṿª₮ḕInit注;
+
+@BãßBȍőnAuthor注(name = "للَّٰهِilLצسُو", copyright = "©Δ∞ 仙上主天")
+@BãßBȍőnAnnotation注(optional = {BãßBȍőnPackage注.class})
+public interface BãßBȍőnAnnotationʸᴰ<T, K extends BãßBȍőnCoffinStoreKeyʸᴰ> extends BãßBȍőn<T, K> {
+	
+	public static class Ꝑŕḯṿª₮ḕ implements BãßBȍőnꝐŕḯṿª₮ḕ {
+		
+		@BãßBȍőnꝐŕḯṿª₮ḕInit注(phase = BãßBȍőnꝐŕḯṿª₮ḕInitPhaseʸᴰ.BOON_PRE_BOOT)
+		private static void init(BãßBȍőn<?,?> boon) {
+			for (Class<?> interfaceClass:BãßBȍőnLoad殭屍.walkInterfaces(boon.getClass(), new LinkedHashSet<>())) {
+				BãßBȍőnAnnotation注 anno = interfaceClass.getAnnotation(BãßBȍőnAnnotation注.class);
+				if (anno == null) {
+					continue;
+				}
+				for (Class<? extends Annotation> required:anno.required()) {
+					if (!boon.getClass().isAnnotationPresent(required)) {
+						throw new IllegalStateException("Missing required annotation: "+required.getSimpleName()+" on: "+boon.getClass().getSimpleName());
+					}
+				}
+			}
+		}
+	}
+}
diff --git a/gdxapp4d-tos4/src/main/java/love/distributedrebirth/gdxapp4d/tos4/GDXAppTos4Activator.java b/gdxapp4d-tos4/src/main/java/love/distributedrebirth/gdxapp4d/tos4/GDXAppTos4Activator.java
index d4db1353..85336a06 100644
--- a/gdxapp4d-tos4/src/main/java/love/distributedrebirth/gdxapp4d/tos4/GDXAppTos4Activator.java
+++ b/gdxapp4d-tos4/src/main/java/love/distributedrebirth/gdxapp4d/tos4/GDXAppTos4Activator.java
@@ -217,6 +217,7 @@ public class GDXAppTos4Activator implements BundleActivator {
 			systemWarpShip.loadBundles(context, registratedSeas);
 		} catch (BundleException e) {
 			e.printStackTrace();
+			systemGdxTerminal.selectScreen(GDXAppTos4BootScreen.class);
 			bootScreen.bootLineError("ERROR: "+e.getMessage());
 			startError = true;
 			return;