Neko Atsume-themed 'find the cat' game.
Ask students "Where is my cat?" Students must suggest a hiding place, e.g. "it's in the box/it's under the bed/it's on the chair". Click a circle to reveal whether the cat is in that location. Click elsewhere/use keyboard to reveal target sentence. We used slide 2 to elicit target language like 'bed' and 'table'.
I played with students volunteering to say a sentence, which we'd drill as a class and check if it was correct. The correct guess would be drilled a couple extra times. Students who guessed correctly won the round and got some applause and praise. After a few rounds, my co teacher and I picked students who hadn't yet volunteered and coached them through a sentence.
By the end of the game, the students seemed more confident in distinguishing between 'in' and 'on', as well as making sentences with the target language. They got pretty excited when the cat was revealed.
Edit: This game can be a little easy, depending on the class. To make it more challenging, you can duplicate some slides, or make a few 'I don't know' slides by deleting the cat.