Have you ever played "Whack a Mole"?  This is my version...we'll...with ZOMBIES of course! It's an open Q&A game that uses alphabets and numbers on a grid. There's also a built in score board so everything's on one ppt slide ready to go! Let me know if it works - And if you've used it in your classroom I'd like to know how it  goes. Download the template in the description. Enjoy!

https://www.youtube.com/watch?v=b3cStP42Y50