diff --git a/lib/gamacon b/lib/gamacon
index b5b64a2..41d3996 160000
--- a/lib/gamacon
+++ b/lib/gamacon
@@ -1 +1 @@
-Subproject commit b5b64a2f824351e3175f505ff640c8b60b41493c
+Subproject commit 41d39962d0b2eb6b605ecf9bd7623e61605e5181
diff --git a/lib/quadtree b/lib/quadtree
index a7a504f..92c9b27 160000
--- a/lib/quadtree
+++ b/lib/quadtree
@@ -1 +1 @@
-Subproject commit a7a504fd265048061449854a6b031c7e4a4f7f0b
+Subproject commit 92c9b27f3aff4db22537ae025d784a094e938811
diff --git a/prefabs/player.gcprefab b/prefabs/player.gcprefab
index 6a12a4c..aa21e50 100644
--- a/prefabs/player.gcprefab
+++ b/prefabs/player.gcprefab
@@ -12,7 +12,7 @@
         <gravity_component speed="2000" />
         <keyboard_controller left="16" right="3" jump="57" />
         <walk_action acceleration="3000" max_acceleration="100" decceleration="100"/>
-        <jump_action acceleration="50000" counterforce="6000"/>
+        <jump_action acceleration="25000" counterforce="6000"/>
         <friction_component value=".7" />
         <collision_component layer="11000000" />
     </gc_entity>
diff --git a/src/systems/gravity_system.c b/src/systems/gravity_system.c
index 9143dd1..bae5962 100644
--- a/src/systems/gravity_system.c
+++ b/src/systems/gravity_system.c
@@ -21,7 +21,6 @@ gc_entity *entity, float dtime)
 {
     struct gravity_component *grav = GETCMP(gravity_component);
     struct movable_component *mov = GETCMP(movable_component);
-    struct collision_component *col = GETCMP(collision_component);
 
     mov->acceleration.y -= grav->gravity_speed;
     (void)system;
diff --git a/src/systems/jump_system.c b/src/systems/jump_system.c
index eda4e04..50a3038 100644
--- a/src/systems/jump_system.c
+++ b/src/systems/jump_system.c
@@ -17,7 +17,7 @@
 #include "utility.h"
 #include <stddef.h>
 
-static void update_entity(gc_engine *engine, void *system, 
+static void update_entity(gc_engine *engine, void *system,
 gc_entity *entity, float dtime)
 {
     struct collision_component *col = GETCMP(collision_component);