diff --git a/game.scm b/game.scm
index 1e991a0..13baae4 100644
--- a/game.scm
+++ b/game.scm
@@ -319,8 +319,9 @@
                 (('receive-electron x y)
                  (play-sound-effect audio:warp 0.25))
                 (('explosion x y)
+                 ;; TODO: Particles!
                  (play-sound-effect audio:explosion)
-                 (pk 'BOOM!))
+                 (show-effect! (make-screen-shake-effect 0.2)))
                 (_ (values)))
               (lp rest))))
          (update-objects!)