Whack a mode

Hi,

I'm from roomloaded. We have an engine that users can login with their smartphone by calling in and a pub wanted us to setup a whack a mole game for 20 users.

So first someone can call in then the screen gives a timer so other users can also login still and after that users can play for x minutes (probably 3-4 minutes) the game and have a highscore at the end which can be also fetched from our api.

Someone able to do this?

We need this game beginning of may already. Graphics and sound can be delivered.

Kind regards,
Valerie