diff --git a/js/level.js b/js/level.js
index 793c54b..e262f6f 100644
--- a/js/level.js
+++ b/js/level.js
@@ -2249,7 +2249,7 @@ const level = {
         // spawn.pulsarBoss(1900, -500)
         spawn.grenadierBoss(1900, -500)
 
-        spawn.shieldingBoss(1900, -500)
+        // spawn.shieldingBoss(1900, -500)
         // spawn.historyBoss(1200, -500)
         // spawn.laserTargetingBoss(1600, -400)
         // spawn.hopper(1600, -500)
@@ -2263,7 +2263,7 @@ const level = {
         // spawn.laser(1200, -500)
         // spawn.shield(mob[mob.length - 1], 1800, -120, 1);
 
-        // spawn.nodeGroup(1200, -500, "grenadier")
+        spawn.nodeGroup(1200, -500, "grenadier")
         // spawn.snakeBoss(1200, -500)
         // spawn.suckerBoss(2900, -500)
         // spawn.randomMob(1600, -500)
@@ -3921,7 +3921,7 @@ const level = {
         powerUps.spawn(-4200, -700, "ammo");
         powerUps.spawn(-4000, -700, "ammo");
         spawn.mapRect(-4450, -1000, 100, 500);
-        spawn.bodyRect(-3576, -750, 150, 150);
+        spawn.bodyRect(-3500, -750, 150, 150);
 
         //building 1
         spawn.bodyRect(-1000, -675, 25, 25);
diff --git a/js/spawn.js b/js/spawn.js
index f898845..4793c55 100644
--- a/js/spawn.js
+++ b/js/spawn.js
@@ -3017,8 +3017,8 @@ const spawn = {
             for (let i = 0; i < 6; i++) {
                 spawn.grenade(this.position.x, this.position.y, 2, 4, 75 * simulation.CDScale);
                 const who = mob[mob.length - 1]
-                who.collisionFilter.category = 0
-                who.collisionFilter.mask = 0
+                // who.collisionFilter.category = 0
+                who.collisionFilter.mask = cat.player | cat.map;
                 const speed = 4 * simulation.accelScale;
                 const angle = 2 * Math.PI * i / 6
                 Matter.Body.setVelocity(who, {
@@ -3034,8 +3034,8 @@ const spawn = {
                 this.grenadeLimiter += 60
                 spawn.grenade(this.position.x, this.position.y, 2, 4, 80 + Math.floor(60 * Math.random()));
                 const who = mob[mob.length - 1]
-                who.collisionFilter.category = 0
-                who.collisionFilter.mask = 0
+                // who.collisionFilter.category = 0
+                who.collisionFilter.mask = cat.player | cat.map;
                 const velocity = Vector.mult(Vector.normalise(Vector.sub(player.position, who.position)), 3 * Math.sqrt(simulation.accelScale) + 4 * Math.random())
                 Matter.Body.setVelocity(who, {
                     x: this.velocity.x + velocity.x,
@@ -3174,8 +3174,8 @@ const spawn = {
         };
         me.onDeath = function() { //helps collisions functions work better after vertex have been changed
             spawn.grenade(this.position.x, this.position.y, 2, 4, 75 * simulation.CDScale);
-            mob[mob.length - 1].collisionFilter.category = 0
-            mob[mob.length - 1].collisionFilter.mask = 0
+            // mob[mob.length - 1].collisionFilter.category = 0
+            mob[mob.length - 1].collisionFilter.mask = cat.player | cat.map;
         }
         // spawn.shield(me, x, y);
         me.do = function() {
diff --git a/todo.txt b/todo.txt
index a86c7a4..5493a5c 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,8 +1,5 @@
 ******************************************************** NEXT PATCH ********************************************************
 
-new mobs - grenadier and grenadierBoss
-
-tech drone repair has a 25% chance to use ammo, was 33%
 
 ******************************************************** TODO ********************************************************