What is the RadarMap Quiz game, how does it work?

According to the introduction of Kirov & Nikolov, RadarMap Quiz is a Educational game on the Android platform. There is currently a 1.0 version released on Nov 01, 2018, you can see the details below.

You may succeseed to name all the countries in the world ,but can you recognize them by just seeing their map borders ?
RadarMapQuiz dares you to do that !
This is a fun and educational game for people who love to challenge themselves a bit.
A country will gradually reveal it's map borders to you, waiting for you to guess it's name in 30 seconds.
Four multiple-choice answers and three Joker cards will be at your disposal.
Have fun!

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