By now, I've gotten annoyingly good at laser tag compared to the students who will actually be playing the game, and just like in Halo this can make for a less than fun experience. I've added in a mechanism borrowed from mario kart where if a player falls behind, they get an invisible boost in performance. If they don't have enough kills, their weapons get more powerful. If they've died too many times, their shield gets stronger. It's all proportional and tunable, as they come back to the front they go back to normal.