I like Hot Seat! I'll have to try that out next school year. I teach World History at the high school level, and I have an elaborate system with how I structure my exam review, exam, and then post-exam classes.
1. Pre-Exam Review: Provide a study guide that has a list of terms, but also a question paired with each term. I also allow students to create any other study tool, like a set of flashcards or a Quizlet. If they complete this review activity, then they are eligible to do corrections on the exam.
2. Pre-Exam Review: Blooket - Blooket is like a more powerful version of Kahoot. There are a ton of cool review/study games. My favorite is Fishing Frenzy, where kids answer as many questions as possible within the set time limit and try to catch as many fish as they can. They're also strangely competitive with another game, "Gold Quest". Lots of stealing gold/points from each other.
3. Exam: Students take the exam. Self-Explanatory.
4. Post-Exam In the same class period that students take the exam, they can do an exam retake OR exam corrections. Exam retakes allow them to increase their exam score up to a 75 - they have to look at their original exam so they know what they got right the first time, and it gives them a chance to review and choose their next-best option. I also have them write a few sentences about how they will plan to prepare better for the next exam. Students are only eligible for exam corrections if they complete the review activity (the study guide, flashcards, quizlet) BEFORE we take the exam, and corrections let students earn back half credit for each question they missed with no limit. For corrections, student have to explain logically why their original answer was not correct, or why their next best choice logically is the correct answer.
I also do candy for the winners of each round of Blooket.