Spirit contests allow the students to show off their best school attitude, and get others around them excited about the game. You can have students compete in a face or body painting game, allowing them to compete for the best design. You can also have them come up with cheers for the game or participate in banner-painting contests. Have them show their spirit in the most inventive way possible, and award the winners with simple prizes.
Bring out a group of juniors and a group of seniors at your spirit assembly. Set them through a number of fun or silly competitions. You can use events like a tug-of-war rope pull, a water balloon tossing contest, an egg carrying contest or a simple obstacle course. Have the students wear blindfolds and force them to complete tasks, or have a quiz or school trivia show.
Like homecoming or prom court, spirit court allows you to have a competition for students of both genders and at every grade level. Have the student body vote before the assembly on the student court. Call out the group of winning students at the assembly. Then let the remaining student body cheer for the winners on the floor of the assembly. Have the court show off their spirit in the best way possible.
Instead of just having a few hours of games at a spirit assembly, some schools incorporate spirit weeks. These feature five days full of events and often culminate at a week-end assembly before the big game. During spirit weeks you can have each class level dress in different school colors one day, the next day you can have a karaoke contest in the commons during lunch, and the next you can have a fun sumo wrestling contest with fake costumes and fat suits. Award a winning class (freshman, sophomore, junior, senior) for each event and award prizes at the assembly.