diff --git a/android/AndroidManifest.xml b/android/AndroidManifest.xml
index 6afce340ee..8150f67ba9 100644
--- a/android/AndroidManifest.xml
+++ b/android/AndroidManifest.xml
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="io.anuke.mindustry"
-    android:versionCode="28"
-    android:versionName="3.01" >
+    android:versionCode="30"
+    android:versionName="3.03" >
 
     <uses-sdk android:minSdkVersion="9" android:targetSdkVersion="25" />
     <uses-permission android:name="com.android.vending.BILLING" />
diff --git a/core/src/io/anuke/mindustry/core/Control.java b/core/src/io/anuke/mindustry/core/Control.java
index 3fef00d29a..397728ef71 100644
--- a/core/src/io/anuke/mindustry/core/Control.java
+++ b/core/src/io/anuke/mindustry/core/Control.java
@@ -26,6 +26,7 @@ import io.anuke.mindustry.resource.Item;
 import io.anuke.mindustry.resource.ItemStack;
 import io.anuke.mindustry.resource.Weapon;
 import io.anuke.mindustry.world.*;
+import io.anuke.mindustry.world.blocks.ProductionBlocks;
 import io.anuke.ucore.UCore;
 import io.anuke.ucore.core.*;
 import io.anuke.ucore.entities.Entities;
@@ -178,6 +179,17 @@ public class Control extends Module{
 		GameState.set(State.playing);
 	}
 	
+	public void findCore(){
+		for(int x = 0; x < Vars.world.width(); x ++){
+			for(int y = 0; y < Vars.world.height(); y ++){
+				if(world.tile(x, y).block() == ProductionBlocks.core){
+					core = world.tile(x, y);
+					return;
+				}
+			}
+		}
+	}
+	
 	public Tile getCore(){
 		return core;
 	}
diff --git a/core/src/io/anuke/mindustry/core/Renderer.java b/core/src/io/anuke/mindustry/core/Renderer.java
index 73aaf8d443..d93600c71e 100644
--- a/core/src/io/anuke/mindustry/core/Renderer.java
+++ b/core/src/io/anuke/mindustry/core/Renderer.java
@@ -98,6 +98,10 @@ public class Renderer extends RendererModule{
 			clearScreen();
 		}else{
 			boolean smoothcam = Settings.getBool("smoothcam");
+			
+			if(control.core == null){ //how is this possible? apparently it is
+				control.findCore();
+			}
 
 			if(control.core.block() == ProductionBlocks.core){
 
diff --git a/core/src/io/anuke/mindustry/entities/Player.java b/core/src/io/anuke/mindustry/entities/Player.java
index 5418e662b2..0a862bdff6 100644
--- a/core/src/io/anuke/mindustry/entities/Player.java
+++ b/core/src/io/anuke/mindustry/entities/Player.java
@@ -38,7 +38,7 @@ public class Player extends DestructibleEntity{
 	
 	@Override
 	public void damage(int amount){
-		if(!Vars.debug)
+		if(!Vars.debug && !Vars.android)
 			super.damage(amount);
 	}
 	
diff --git a/core/src/io/anuke/mindustry/entities/TileEntity.java b/core/src/io/anuke/mindustry/entities/TileEntity.java
index 0d8d1bb216..8849d22222 100644
--- a/core/src/io/anuke/mindustry/entities/TileEntity.java
+++ b/core/src/io/anuke/mindustry/entities/TileEntity.java
@@ -65,6 +65,7 @@ public class TileEntity extends Entity{
 		block.onDestroyed(tile);
 		
 		Vars.world.removeBlock(tile);
+		remove();
 	}
 	
 	public void collision(Bullet other){
@@ -91,6 +92,10 @@ public class TileEntity extends Entity{
 			Effects.effect(Fx.smoke, x+Mathf.range(4), y+Mathf.range(4));
 		}
 		
+		if(health <= 0){
+			onDeath();
+		}
+		
 		tile.block().update(tile);
 	}
 	
diff --git a/core/src/io/anuke/mindustry/world/blocks/types/defense/Turret.java b/core/src/io/anuke/mindustry/world/blocks/types/defense/Turret.java
index 2d066a4153..639323a9bc 100644
--- a/core/src/io/anuke/mindustry/world/blocks/types/defense/Turret.java
+++ b/core/src/io/anuke/mindustry/world/blocks/types/defense/Turret.java
@@ -109,7 +109,7 @@ public class Turret extends Block{
 	public void drawSelect(Tile tile){
 		Vector2 offset = getPlaceOffset();
 		
-		Draw.color("green");
+		Draw.color(Color.GREEN);
 		Draw.dashCircle(tile.worldx() + offset.x, tile.worldy() + offset.y, range);
 		Draw.reset();
 		
diff --git a/core/src/io/anuke/mindustry/world/blocks/types/distribution/Sorter.java b/core/src/io/anuke/mindustry/world/blocks/types/distribution/Sorter.java
index e2b264ae8a..8be21df16b 100644
--- a/core/src/io/anuke/mindustry/world/blocks/types/distribution/Sorter.java
+++ b/core/src/io/anuke/mindustry/world/blocks/types/distribution/Sorter.java
@@ -38,6 +38,7 @@ public class Sorter extends Junction implements Configurable{
 	
 	@Override
 	public boolean acceptItem(Item item, Tile dest, Tile source){
+		if(source.block() instanceof Sorter) return false;
 		Tile to = getTileTarget(item, dest, source, false);
 		
 		return to != null && to.block().acceptItem(item, to, dest);
diff --git a/core/src/io/anuke/mindustry/world/blocks/types/distribution/TunnelConveyor.java b/core/src/io/anuke/mindustry/world/blocks/types/distribution/TunnelConveyor.java
index b19b72d9b2..ed64f22235 100644
--- a/core/src/io/anuke/mindustry/world/blocks/types/distribution/TunnelConveyor.java
+++ b/core/src/io/anuke/mindustry/world/blocks/types/distribution/TunnelConveyor.java
@@ -23,6 +23,7 @@ public class TunnelConveyor extends Block{
 	@Override
 	public void handleItem(Item item, Tile tile, Tile source){
 		Tile tunnel = getDestTunnel(tile);
+		if(tunnel == null) return; //TODO how is this possible? HOW DID THEY ACHIEVE SUCH A FEAT?!
 		Tile to = tunnel.getNearby()[tunnel.getRotation()];
 		
 		Timers.run(25, ()->{