diff --git a/modules/game/actors.scm b/modules/game/actors.scm
index 8fe0615..49c0022 100644
--- a/modules/game/actors.scm
+++ b/modules/game/actors.scm
@@ -357,6 +357,8 @@
   (define alive? (spawn ^cell #t))
   (define countdown (spawn ^cell -1))
   (define pushed? (spawn ^cell))
+  (define* (light-fuse #:optional (time 2))
+    ($ countdown time))
   (match-lambda*
     (('type) 'bomb)
     (('position) ($ position))
@@ -392,10 +394,12 @@
     (('update-wire-state grid-info neighbor-grid)
      (when (and (< ($ countdown) 0)
                 (grid-electrified? neighbor-grid))
-       ($ countdown 2)))
+       (light-fuse)))
     (('alive?) ($ alive?))
     (('describe) `(bomb ,($ position) ,($ countdown)))
-    (('explode) ($ countdown 2))
+    (('explode) (light-fuse 1))
+    (('activate grid-info) (light-fuse))
+    (('deactivate grid-info) #f)
     (('collide other offset grid-info)
      (when (eq? ($ other 'type) 'player)
        (match ($ position)