You can divide students into teams or have them play individually. They can receive a point (if you want to play for points) or a sticker/stamp/etc. for correct answers.
The PowerPoint should be easy to use--use the arrow keys or space bar to progress through the slides, click a sentence box to reveal if it's the "impostor", and click the "back" button to return to the question after revealing the impostor.
I made this with 5th graders in mind, but some of the questions were pretty difficult for them. I'd recommend changing the questions if you play with younger students.
Files:
This is great! My students love among-us.
This is great. I don't know if it's just on my side, but I can't progress to the next question. After choosing who the impostor might be in the first slide, and I press the arrow key to continue, it just shows the animations for the other Among Us characters being ejected and then it goes to the end slide of 'Good Game'.