diff --git a/cat.html b/cat.html
index 9c9dd53..5ee0282 100644
--- a/cat.html
+++ b/cat.html
@@ -1217,6 +1217,10 @@ var game = {
 		this.android = this.ua.indexOf('android') > -1 ? true : false;
 		this.ios = ( this.ua.indexOf('iphone') > -1 || this.ua.indexOf('ipad') > -1  ) ?  true : false;
 
+		if (this.ios || this.android) {
+			FIREWORKSHARDS /= 2;
+		}
+
 		// don't need this now that we statically define the canvas.
 		//document.body.insertBefore(this.canvas, document.body.childNodes[0]);
 
diff --git a/todo b/todo
index 1319fef..4681c68 100644
--- a/todo
+++ b/todo
@@ -11,8 +11,6 @@ https://www.smashingmagazine.com/2012/10/design-your-own-mobile-game/
 
 -------------------
 
-*add firework effect for attaining goals
-
 new door fell down on top of new goat!!
 	(or the other way around ??)
 	check code for doors falling when off the top of the screen.