diff --git a/core/assets/sprites/backgrounds/planet-zero.png b/core/assets/sprites/backgrounds/planet-zero.png
deleted file mode 100644
index b1e13f744c..0000000000
Binary files a/core/assets/sprites/backgrounds/planet-zero.png and /dev/null differ
diff --git a/core/assets/sprites/backgrounds/stars.png b/core/assets/sprites/backgrounds/stars.png
deleted file mode 100644
index 41a8fadb7b..0000000000
Binary files a/core/assets/sprites/backgrounds/stars.png and /dev/null differ
diff --git a/core/src/mindustry/content/Weathers.java b/core/src/mindustry/content/Weathers.java
index 58bbafd09c..26f1349571 100644
--- a/core/src/mindustry/content/Weathers.java
+++ b/core/src/mindustry/content/Weathers.java
@@ -1,8 +1,14 @@
 package mindustry.content;
 
+import arc.*;
+import arc.graphics.g2d.*;
+import arc.math.*;
+import arc.util.*;
 import mindustry.ctype.*;
 import mindustry.type.*;
 
+import static mindustry.Vars.world;
+
 public class Weathers implements ContentList{
     public static Weather
     rain,
@@ -11,9 +17,35 @@ public class Weathers implements ContentList{
     @Override
     public void load(){
         snow = new Weather("snow"){
+            Rand rand = new Rand();
 
             @Override
             public void draw(){
+                rand.setSeed(0);
+                float yspeed = 2f, xspeed = 0.25f;
+                float padding = 16f;
+                float size = 12f;
+                Core.camera.bounds(Tmp.r1);
+                Tmp.r1.grow(padding);
+
+                for(int i = 0; i < 100; i++){
+                    float scl = rand.random(0.5f, 1f);
+                    float scl2 = rand.random(0.5f, 1f);
+                    float sscl = rand.random(0.2f, 1f);
+                    float x = (rand.random(0f, world.unitWidth()) + Time.time() * xspeed * scl2);
+                    float y = (rand.random(0f, world.unitHeight()) - Time.time() * yspeed * scl);
+
+                    x += Mathf.sin(y, rand.random(30f, 80f), rand.random(1f, 7f));
+
+                    x -= Tmp.r1.x;
+                    y -= Tmp.r1.y;
+                    x = Mathf.mod(x, Tmp.r1.width);
+                    y = Mathf.mod(y, Tmp.r1.height);
+                    x += Tmp.r1.x;
+                    y += Tmp.r1.y;
+
+                    Draw.rect("circle-shadow", x, y, size * sscl, size * sscl);
+                }
                 //TODO
             }
         };
diff --git a/core/src/mindustry/core/Logic.java b/core/src/mindustry/core/Logic.java
index 7cbee33912..2c6c02e311 100644
--- a/core/src/mindustry/core/Logic.java
+++ b/core/src/mindustry/core/Logic.java
@@ -32,7 +32,7 @@ public class Logic implements ApplicationListener{
     public Logic(){
         Events.on(WorldLoadEvent.class, event -> {
             //TODO remove later
-            Weathers.snow.create();
+            //Weathers.snow.create();
         });
 
         Events.on(WaveEvent.class, event -> {
diff --git a/core/src/mindustry/entities/def/UnitComp.java b/core/src/mindustry/entities/def/UnitComp.java
index 1a8a3d12a4..7bcc8227d9 100644
--- a/core/src/mindustry/entities/def/UnitComp.java
+++ b/core/src/mindustry/entities/def/UnitComp.java
@@ -79,8 +79,8 @@ abstract class UnitComp implements Healthc, Velc, Statusc, Teamc, Itemsc, Hitbox
         Vec2 v = Geometry.overlap(Tmp.r1, Tmp.r2, true);
         float tm = mass() + unit.mass();
         float s1 = mass() / tm, s2 = unit.mass() / tm;
-        impulse(v.x*s2/scale, v.y*s2/scale);
-        unit.impulse(-v.x*s1/scale, -v.y*s1/scale);
+        move(v.x*s2/scale, v.y*s2/scale);
+        unit.move(-v.x*s1/scale, -v.y*s1/scale);
     }
 
     @Override
@@ -139,6 +139,11 @@ abstract class UnitComp implements Healthc, Velc, Statusc, Teamc, Itemsc, Hitbox
                 tile.entity.unitOn(this);
             }
 
+            //kill when stuck in wall
+            if(isGrounded() && tile.solid()){
+                kill();
+            }
+
             //apply damage
             if(floor.damageTaken > 0f){
                 damageContinuous(floor.damageTaken);
diff --git a/core/src/mindustry/entities/units/AIController.java b/core/src/mindustry/entities/units/AIController.java
index d5acecb965..bdb1279765 100644
--- a/core/src/mindustry/entities/units/AIController.java
+++ b/core/src/mindustry/entities/units/AIController.java
@@ -28,7 +28,7 @@ public class AIController implements UnitController{
     }
 
     protected boolean retarget(){
-        return timer.get(timerTarget, 20);
+        return timer.get(timerTarget, 30);
     }
 
     protected void targetClosest(){