This is a full 2 board Jeopardy game for review at the end of second semester. Board 1 is divided up by unit, board 2 is divided by question type. There's vocabulary (単語）, translation（翻訳）, fix the sentence（文直し）, true or false（OかX）, and challenge questions. Because you don't know which content to expect I think board 2 feels a bit more difficult. Only the second board has a final Jeopardy question where the teams can wager their points.
This serves as great review, but be warned that it's a very competitive game so it's easy for it to get out of hand. Take the time to remind the kids that they may not get everything right, but there will be many chances to score points. 100 level questions are simple, 500 level questions are harder (but nothing crazy.)
Encourage them to work in groups and discuss the question carefully before answering- this works best as a team game! I do my best not to translate questions in Japanese beyond re-explaining the category and how they're meant to answer.
A few things- The answer to board 2 Challenge 5 "What do you have on Wednesdays" and OかX 2 "You have English class on Tuesdays" will depend on your students' schedules, so award points accordingly. The answer to OかX 1 "It is December" also depends on what month you're playing.
Board 1: https://www.playfactile.com/jeopardy-game/m4aw4lmib1
Board 2: https://www.playfactile.com/jeopardy-game/m4ax87yd1e