This is a low-prep powerpoint game for Unit 6 of Let's Try 1.
Each slide has capital letters arranged on top of each other that increase in number and difficulty as the powerpoint progresses. Have the students guess what letters they think are on the slide, (I write their guesses on the board, so each student can see what has already been said). Then click to reveal the actual letters with a little animation.
It's an engaging way for students to see which letters are similar or different. Also their surprised reactions to some reveals are very entertaining.