diff --git a/.idea/libraries/slick2d.xml b/.idea/libraries/slick2d.xml
new file mode 100644
index 0000000..2496da3
--- /dev/null
+++ b/.idea/libraries/slick2d.xml
@@ -0,0 +1,22 @@
+<component name="libraryTable">
+  <library name="slick2d">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/slick/lib/jnlp.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/slick/lib/ibxm.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/slick/lib/jinput.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/slick/lib/jogg-0.0.7.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/slick/lib/slick.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/slick/lib/tinylinepp.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/slick/lib/jorbis-0.0.15.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/slick/lib/lwjgl.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/slick/lib/lwjgl_util.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/slick/lib/lwjgl_util_applet.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/slick/lib/natives-linux.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/slick/lib/natives-mac.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/slick/lib/natives-windows.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/slick/lib/slick-examples.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
+</component>
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 0492111..d209eb9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -8,15 +8,6 @@
     <artifactId>jumpGame</artifactId>
     <version>1.0-SNAPSHOT</version>
 
-    <properties>
-        <lwjgl.version>3.2.3</lwjgl.version>
-        <joml.version>1.9.24</joml.version>
-        <lwjgl.natives>natives-windows</lwjgl.natives>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <java.version>1.8</java.version>
-        <maven.compiler.source>11</maven.compiler.source>
-        <maven.compiler.target>11</maven.compiler.target>
-    </properties>
 
     <build>
         <plugins>
@@ -24,14 +15,23 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>11.0</source>
-                    <target>11.0</target>
-
+                    <source>12</source>
+                    <target>12</target>
                 </configuration>
             </plugin>
         </plugins>
     </build>
 
+    <properties>
+        <lwjgl.version>3.2.3</lwjgl.version>
+        <joml.version>1.9.24</joml.version>
+        <lwjgl.natives>natives-windows</lwjgl.natives>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <java.version>1.8</java.version>
+        <maven.compiler.source>12</maven.compiler.source>
+        <maven.compiler.target>12</maven.compiler.target>
+    </properties>
+
     <dependencyManagement>
         <dependencies>
             <dependency>
diff --git a/src/main/java/Main.java b/src/main/java/Main.java
index c6d48d4..40164fd 100644
--- a/src/main/java/Main.java
+++ b/src/main/java/Main.java
@@ -13,6 +13,7 @@
     // The window handle
     private long window;
 
+
     public void run() {
         System.out.println("Hello LWJGL " + Version.getVersion() + "!");
 
@@ -30,6 +31,7 @@
         }
     }
 
+
     private void init() {
         // Setup an error callback. The default implementation
         // will print the error message in System.err.
@@ -49,12 +51,12 @@
         int HEIGHT = 300;
 
         // Create the window
-        window = glfwCreateWindow(WIDTH, HEIGHT, "Hello World!", NULL, NULL);
+        window = glfwCreateWindow(WIDTH, HEIGHT, "JumpGame!", NULL, NULL);
         if (window == NULL) {
             throw new RuntimeException("Failed to create the GLFW window");
         }
 
-        // Setup a key callback. It will be called every time a key is pressed, repeated or released.
+        // Escで終了
         glfwSetKeyCallback(window, (window, key, scancode, action, mods) -> {
             if (key == GLFW_KEY_ESCAPE && action == GLFW_RELEASE) {
                 glfwSetWindowShouldClose(window, true); // We will detect this in the rendering loop
@@ -88,7 +90,7 @@
         GL.createCapabilities();
 
         // Set the clear color
-        glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
+        glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
 
         // Run the rendering loop until the user has attempted to close
         // the window or has pressed the ESCAPE key.