diff --git a/marblegame.hl b/marblegame.hl
index ff3f8970..1fff1b26 100644
Binary files a/marblegame.hl and b/marblegame.hl differ
diff --git a/src/shapes/AbstractBumper.hx b/src/shapes/AbstractBumper.hx
new file mode 100644
index 00000000..76e0e5cc
--- /dev/null
+++ b/src/shapes/AbstractBumper.hx
@@ -0,0 +1,36 @@
+package shapes;
+
+import collision.CollisionInfo;
+import src.DtsObject;
+import src.TimeState;
+import src.Util;
+
+class AbstractBumper extends DtsObject {
+	var lastContactTime = Math.NEGATIVE_INFINITY;
+
+	override function update(timeState:src.TimeState) {
+		// Override the keyframe
+		var currentCompletion = getCurrentCompletion(timeState);
+		this.sequenceKeyframeOverride.set(this.dts.sequences[0], currentCompletion * (this.dts.sequences[0].numKeyFrames - 1));
+
+		super.update(timeState);
+	}
+
+	function getCurrentCompletion(timeState:TimeState) {
+		var elapsed = timeState.timeSinceLoad - this.lastContactTime;
+		var completion = Util.clamp(elapsed / this.dts.sequences[0].duration, 0, 1);
+		return completion;
+	}
+
+	override function onMarbleContact(time:TimeState, ?contact:CollisionInfo) {
+		super.onMarbleContact(time, contact);
+		if (time.timeSinceLoad - this.lastContactTime <= 0)
+			return;
+		var currentCompletion = this.getCurrentCompletion(time);
+		if (currentCompletion == 0 || currentCompletion == 1) {
+			this.lastContactTime = time.timeSinceLoad;
+		}
+
+		// this.level.replay.recordMarbleContact(this);
+	}
+}
diff --git a/src/shapes/RoundBumper.hx b/src/shapes/RoundBumper.hx
index be4e1b1e..6a3d0a6c 100644
--- a/src/shapes/RoundBumper.hx
+++ b/src/shapes/RoundBumper.hx
@@ -5,39 +5,11 @@ import src.DtsObject;
 import src.TimeState;
 import src.Util;
 
-class RoundBumper extends DtsObject {
-	var lastContactTime = Math.NEGATIVE_INFINITY;
-
+class RoundBumper extends AbstractBumper {
 	public function new() {
 		super();
 		dtsPath = "data/shapes/bumpers/pball_round.dts";
 		isCollideable = true;
 		identifier = "RoundBumper";
 	}
-
-	override function update(timeState:src.TimeState) {
-		// Override the keyframe
-		var currentCompletion = getCurrentCompletion(timeState);
-		this.sequenceKeyframeOverride.set(this.dts.sequences[0], currentCompletion * (this.dts.sequences[0].numKeyFrames - 1));
-
-		super.update(timeState);
-	}
-
-	function getCurrentCompletion(timeState:TimeState) {
-		var elapsed = timeState.timeSinceLoad - this.lastContactTime;
-		var completion = Util.clamp(elapsed / this.dts.sequences[0].duration, 0, 1);
-		return completion;
-	}
-
-	override function onMarbleContact(time:TimeState, ?contact:CollisionInfo) {
-		super.onMarbleContact(time, contact);
-		if (time.timeSinceLoad - this.lastContactTime <= 0)
-			return;
-		var currentCompletion = this.getCurrentCompletion(time);
-		if (currentCompletion == 0 || currentCompletion == 1) {
-			this.lastContactTime = time.timeSinceLoad;
-		}
-
-		// this.level.replay.recordMarbleContact(this);
-	}
 }
diff --git a/src/shapes/TriangleBumper.hx b/src/shapes/TriangleBumper.hx
index 22ea751a..6b72bb5d 100644
--- a/src/shapes/TriangleBumper.hx
+++ b/src/shapes/TriangleBumper.hx
@@ -2,7 +2,7 @@ package shapes;
 
 import src.DtsObject;
 
-class TriangleBumper extends DtsObject {
+class TriangleBumper extends AbstractBumper {
 	public function new() {
 		super();
 		dtsPath = "data/shapes/bumpers/pball_tri.dts";