diff --git a/.gitignore b/.gitignore
index 4cb7b24..58add36 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 *.lvl
 *.class
 target/
+.idea/
+*.iml
diff --git a/README.md b/README.md
index 48b5c28..74083e9 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,8 @@ Build with:
 
 Run the game:
 
-    ./start_game.sh
+    MacOSX / Linux: ./start.sh
+    Windows: start.bat (IN PROGRESS)
 OR
     java -jar target/dq-1.1-SNAPSHOT.jar
 
diff --git a/pom.xml b/pom.xml
index 13b9136..b49096a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>com.droidquest</groupId>
     <artifactId>dq</artifactId>
-    <version>1.1-SNAPSHOT</version>
+    <version>1.2</version>
     <packaging>jar</packaging>
 
     <name>DroidQuest</name>
@@ -22,8 +22,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.3</version>
                 <configuration>
-                    <source>5</source>
-                    <target>5</target>
+                    <source>1.6</source>
+                    <target>1.6</target>
                 </configuration>
             </plugin>
             <plugin>
diff --git a/src/com/droidquest/items/GateKeeper.java b/src/com/droidquest/items/GateKeeper.java
index 7ef1b6e..91b5cce 100644
--- a/src/com/droidquest/items/GateKeeper.java
+++ b/src/com/droidquest/items/GateKeeper.java
@@ -64,7 +64,7 @@ public class GateKeeper extends Item {
 
     public void Animate() {
         if (behavior == 1) {
-            if (x != goToX && y != goToY) {
+            if (x != goToX || y != goToY) {
                 if (x != goToX) {
                     int diff = Math.abs(goToX - x);
                     int dir = diff / (goToX - x);
diff --git a/src/com/droidquest/items/Sentry.java b/src/com/droidquest/items/Sentry.java
index 5e08dc3..a0e7356 100644
--- a/src/com/droidquest/items/Sentry.java
+++ b/src/com/droidquest/items/Sentry.java
@@ -240,9 +240,11 @@ public class Sentry extends Item {
 
         if (behavior == -1) {
             if (carrying == null) {
-                x = robot.x + robot.width / 2 - width / 2;
-                y = robot.y + robot.height / 2 - height / 2;
-                PicksUp(robot);
+                if(robot != null) {
+                    x = robot.x + robot.width / 2 - width / 2;
+                    y = robot.y + robot.height / 2 - height / 2;
+                    PicksUp(robot);
+                }
             }
         }
 
diff --git a/src/com/droidquest/materials/BatteryIn.java b/src/com/droidquest/materials/BatteryIn.java
index d7fb360..184660d 100644
--- a/src/com/droidquest/materials/BatteryIn.java
+++ b/src/com/droidquest/materials/BatteryIn.java
@@ -13,7 +13,7 @@ import com.droidquest.levels.Level;
 public class BatteryIn extends Material {
     // Charges the Battery when an Energy Crystal is passed over it.
 
-    public void BatteryIn() {
+    public BatteryIn() {
         passable = true;
         GenerateIcons();
     }
diff --git a/start.bat b/start.bat
new file mode 100755
index 0000000..34ec06b
--- /dev/null
+++ b/start.bat
@@ -0,0 +1 @@
+java -jar "target\dq-1.2.jar"
diff --git a/start.sh b/start.sh
new file mode 100755
index 0000000..cad1915
--- /dev/null
+++ b/start.sh
@@ -0,0 +1,45 @@
+#/bin/sh
+
+RUNPRG="java"
+if ! type -p "${RUNPRG}" > /dev/null;
+then
+  if [ -n "${JAVA_HOME}" ];
+  then
+    RUNPRG="${JAVA_HOME}/bin/java"
+    if [ ! -x "${RUNPRG}" ];
+    then
+      echo "JAVA_HOME set, but unable to find java.  Please check your java installation."
+      exit 1
+    fi
+  else
+    echo "Java 1.6 or newer needed for DQ.  Must be in PATH or JAVA_HOME set."
+    exit 1
+  fi
+fi
+
+
+if [ -f "target/dq-1.2.jar" ];
+then
+  echo "Starting DQ."
+  ${RUNPRG} -jar "target/dq-1.2.jar"
+else
+  echo "No jar found, building DQ before running."
+  MVNPRG="mvn"
+  if ! type -p "${MVNPRG}" > /dev/null;
+  then
+    if [ -n "${MAVEN_HOME}" ];
+    then
+      MVNPRG="${MAVEN_HOME}/bin/mvn"
+      if [ ! -x "${MVNPRG}" ];
+      then
+        echo "MAVEN_HOME set, but unable to find mvn executable. Please check your maven installation."
+        exit 1
+      fi
+    else
+      echo "Maven required to build DQ.  See maven.apache.org to download."
+      exit 1
+    fi
+  fi
+  ${MVNPRG} package
+  ${MVNPRG} exec:java -Dexec.mainClass=com.droidquest.DQ
+fi
diff --git a/start_game.sh b/start_game.sh
deleted file mode 100755
index 7aff439..0000000
--- a/start_game.sh
+++ /dev/null
@@ -1 +0,0 @@
-mvn exec:java -Dexec.mainClass=com.droidquest.DQ