diff --git a/src/main.rs b/src/main.rs
index d56ae7e..fa4c474 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -64,13 +64,28 @@ fn main() {
         Tuple::vector(2.2, 0.0, 21.0),
     );
 
+    let mut ball2 = Projectile::new(
+        Tuple::point(195.0, 0.0, 0.0),
+        Tuple::vector(-2.2, 0.0, 21.0),
+    );
+
+    let mut ball3 = Projectile::new(
+        Tuple::point(299.0, 0.0, 0.0),
+        Tuple::vector(-2.2, 0.0, 21.0),
+    );
+
     let mut canvas = Canvas::new(300, 300);
-    let color = Color::new(1.0, 1.0, 0.0);
+    let color = Color::new(1.0, 0.0, 0.0);
+    let color2 = Color::new(0.0, 1.0, 0.0);
+    let color3 = Color::new(0.0, 0.0, 1.0);
     loop {
         canvas.write_pixel(ball.position.x() as usize, canvas.height() - (ball.position.z() as usize) - 1, color);
+        canvas.write_pixel(ball2.position.x() as usize, canvas.height() - (ball2.position.z() as usize) - 1, color2);
+        canvas.write_pixel(ball3.position.x() as usize, canvas.height() - (ball3.position.z() as usize) - 1, color3);
 
         ball.tick(&env);
-        println!("ball {}", ball);
+        ball2.tick(&env);
+        ball3.tick(&env);
         if ball.position.z() >= (canvas.height() - 1) as f32
         || ball.position.z() < 0.0
         || ball.position.x() >= (canvas.width() - 1) as f32