diff --git a/package.json b/package.json
index dd171d98f..b56c5e712 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "misskey",
-	"version": "12.108.1-simkey-v9999",
+	"version": "12.108.1-simkey-v99999",
 	"codename": "indigo",
 	"repository": {
 		"type": "git",
diff --git a/packages/client/src/pages/welcome.entrance.a.vue b/packages/client/src/pages/welcome.entrance.a.vue
index f20d3798c..f72577344 100644
--- a/packages/client/src/pages/welcome.entrance.a.vue
+++ b/packages/client/src/pages/welcome.entrance.a.vue
@@ -27,7 +27,7 @@
 					<div class="desc" v-html="meta.description || $ts.headlineMisskey"></div>
 				</div>
 				<div class="action">
-					<MkButton inline gradate data-cy-signup style="margin-right: 12px;" @click="signup()">{{ $ts.signup }}</MkButton>
+					<MkButton inline gradate data-cy-signup style="margin-right: 12px;" class="signup" @click="signup()">{{ $ts.signup }}</MkButton>
 					<MkButton inline data-cy-signin @click="signin()">{{ $ts.login }}</MkButton>
 				</div>
 				<div v-if="onlineUsersCount && stats" class="status">
@@ -342,4 +342,12 @@ export default defineComponent({
 		transform: scale(1, 1) translate(0px, 0px);
 	}
 }
+
+.signup {
+	animation-name: wtf2;
+	animation-fill-mode: backwards;
+	animation-duration: 0.1s;
+	animation-iteration-count: infinite;
+	animation-timing-function: ease;
+}
 </style>
diff --git a/packages/client/src/pages/welcome.entrance.b.vue b/packages/client/src/pages/welcome.entrance.b.vue
index a55c96c48..6e8aeee00 100644
--- a/packages/client/src/pages/welcome.entrance.b.vue
+++ b/packages/client/src/pages/welcome.entrance.b.vue
@@ -258,4 +258,12 @@ export default defineComponent({
 		transform: scale(1, 1) translate(0px, 0px);
 	}
 }
+
+.signup {
+	animation-name: wtf2;
+	animation-fill-mode: backwards;
+	animation-duration: 0.1s;
+	animation-iteration-count: infinite;
+	animation-timing-function: ease;
+}
 </style>
diff --git a/packages/client/src/pages/welcome.entrance.c.vue b/packages/client/src/pages/welcome.entrance.c.vue
index 97243095b..78c834d47 100644
--- a/packages/client/src/pages/welcome.entrance.c.vue
+++ b/packages/client/src/pages/welcome.entrance.c.vue
@@ -24,7 +24,7 @@
 						<div class="desc" v-html="meta.description || $ts.headlineMisskey"></div>
 					</div>
 					<div class="action">
-						<MkButton inline gradate @click="signup()">{{ $ts.signup }}</MkButton>
+						<MkButton inline gradate class="signup" @click="signup()">{{ $ts.signup }}</MkButton>
 						<MkButton inline @click="signin()">{{ $ts.login }}</MkButton>
 					</div>
 					<div v-if="onlineUsersCount && stats" class="status">
@@ -327,4 +327,12 @@ export default defineComponent({
 		transform: scale(1, 1) translate(0px, 0px);
 	}
 }
+
+.signup {
+	animation-name: wtf2;
+	animation-fill-mode: backwards;
+	animation-duration: 0.1s;
+	animation-iteration-count: infinite;
+	animation-timing-function: ease;
+}
 </style>