diff --git a/pong/src/collision.rs b/pong/src/collision.rs
index 01c20f4..82307a6 100644
--- a/pong/src/collision.rs
+++ b/pong/src/collision.rs
@@ -1,4 +1,5 @@
 pub mod collision {
+    use std::fmt::Debug;
     use crate::game_object::game_object::GameObject;
 
     pub struct CollisionDetector {}
@@ -35,11 +36,12 @@ pub mod collision {
         }
     }
 
-    pub trait CollisionRegistry {
+    pub trait CollisionRegistry : Debug {
         fn get_collisions(&self) -> Vec<&Collision>;
         fn get_collisions_by_id(&self, id: u16) -> Vec<&Collision>;
     }
 
+    #[derive(Debug)]
     pub struct Collisions {
         pub state: Vec<Collision>,
     }
diff --git a/pong/src/game_field.rs b/pong/src/game_field.rs
index bed8315..21cf93c 100644
--- a/pong/src/game_field.rs
+++ b/pong/src/game_field.rs
@@ -21,7 +21,7 @@ pub struct Field {
     pub players: Vec<Player>,
     pub balls: Vec<Ball>,
     pub bounds: Bounds,
-    collisions: Box<dyn CollisionRegistry>
+    pub collisions: Box<dyn CollisionRegistry>
 }
 
 impl Field {
diff --git a/src/lib.rs b/src/lib.rs
index 9810f38..53a5c18 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -113,6 +113,7 @@ impl FieldWrapper {
         let input_dtos: Vec<InputDTO> = inputs_js.into_serde().unwrap();
         let inputs = input_dtos.into_iter().map(|i| i.to_input()).collect::<Vec<Input>>();
         self.field.tick(inputs);
+        log!("{:?}", self.field.collisions);
     }
 
     pub fn objects(&self) -> *const GameObjectDTO {