In searching for a way to review topics before exams, I was informed about this powerpoint template which is macro'd to be operated as a realistic Jeopardy game. The site for the original author of the macro is:
(Jeopardy for PowerPoint by Kevin R. Dufendach is licensed under a Creative Commons Attribution 3.0 United States License.)
Most of the other instructions on how to operate the macro are at the website or within the actual powerpoint (and as someone who hasn't macro'd a powerpoint before, I was able to figure it out OK). I recommend using the Excel template to host the Q's and A's, rather than updating all the slides individually.
Regarding the questions, I would take and/or revise some from exam banks or question sets from publishers and use their difficulty metadata to sort them. All of the $100 questions are generally "easy", the $200-400 are "intermediate" and the $500 are typically difficult (or at least, no more difficult than on an actual exam). I'm attaching one example of a finished "double jeopardy" product which I'd start in class (first semester, general chemistry for engineers) and then post afterwards.
I am happy to provide .pptm files, including that correlating to the attached .pdf, on request.
I've done this in two ways.
Before COVID, I attempted to give a realistic Jeopardy experience. I sorted students into 8 teams based on the colors in the template and gave them corresponding colored paper. Once a question was displayed, they'd have the option to submit a group answer (gaining $ if correct, losing if incorrect) or not (no change to their score). To keep things moving, I started a 30-second timer once I received the first answer. While I did my best to update scores in real-time, it helped having the written answers as an audit just to be sure.
After COVID, I ditched the teams and stopped keeping score (you can ask students to do the Honor system), and would generally pick someone who gave a correct response- typically through the Zoom chat and not necessarily the first person- to pick the next question.
The powerpoint saves well as a PDF (see the example attached), so if the entire board isn't addressed in one class (typically we get ~40% done) the students can do any of the other questions on their own. You can see that by clicking any box on the board, the student is automatically taken to the appropriate question.
As you can see I've typically had some fun with the categories. These can be themed on a topic (e.g., "Stoichiometry") or in the event you have a lot of topics you can make a category theme. I try to always have "Potent Potables" and then have all the questions be about CH3OH or CH3CH2OH (e.g., solve for molar mass, use in reactions, etc).
Finally, I've only implemented this in general chemistry and nothing yet more advanced. While there is an option to include a Daily Double, I haven't done this yet.