THE TOP FIVE!

1 - Battle 57: Happy Life Game! Much like the classic board game.
2 - TIE 
Battle 164: I Love You! Who blushes first?
Battle 91: Don't Pop It! Inflate the balloon the most without popping it.
3 - TIE
Battle 117: Arm Wrestling Tournament! A true test of strength.
Battle 99: Ten-Yen Game! Anonymous answers to personal questions.
4 - Battle 2: Old Maid! The classic card game.
5 - Battle 18: Forbidden Word Game! The loser has to go shopping.

6 - Battle 8: 20 Questions! Kaguya tests Shirogane.
7 - TIE
Battle 205: Stand-Up Comedians! Who can cheer Yu up?
Battle 31: Love Psychology Test! Revealing the characters inner thoughts.
Battle 96: Fried Rice! Who is the best chef?
8 -  Battle 173: Cherry Stem Tying! Tying a knot with your tongue.
9 -  Battle 4: Brain Teasers! Kaguya and Miyuki compete to impress each other.
10 -  Battle 196: Batting Cages! Knock it out of the park.
11 - TIE
Battle 188: Shiritori! A classic Japanese word game.
Battle 75: Bell Marks! The entire student council competes for tokens.

Thanks for voting! You can read the first three manga chapters of Kaguya-sama: Love Is War for free HERE! And if you become a Shonen Jump member, you can read the whole series and tons of other great Shonen Jump manga!