Divide the class into two teams and have students come up one at a time per team. Each standing on one side of the screen. The teacher calls out the vocabulary word(s) in Spanish and the student hits it in English and vice versa. The first one to hit the correct word(s) gets a point for their team. Do two vocab words per pair up to the board and then move on to the next person on each team. I also only allow the students to guess/hit three times per vocab word, so they aren't just randomly hitting words--they have to think about their answers. Do not let the team shout out clues unless they shout them in Spanish ("¡Arriba!", "¡Abajo!").
This game has pictures and the English word for calling out the Spanish vocabulary, and then slides with the words in Spanish for which the teacher calls out the English.
You could also print them out on paper or card stock and have students in pairs hide their board from the their partner with a divider and put a token on a vocab word. The first one that guesses where the other one has put their token wins a point.