Best Buy: Mass Effect 3 (XBox & PS3) Only $7.99! June 5, 2013 by Cathy Zeiler Leave a Comment Best Buy has Mass Effect 3 for Playstation 3 and for XBox 360 on sale for only $7.99 each! You save $12.00 off the regular price of $19.99! Choose free store pickup when you check out. Mass Effect 3 For Playstation 3 Go HERE to order. Mass Effect 3 For XBox 360 Buy it from This Page. For more online deals visit our Online Sizzlin Hot Deal Alerts forum!