The Session Booster Event is a short-term competitive feature designed to enhance player engagement in Wizard of Oz Match 3 through fast-paced, high-intensity races. Unlike traditional week-long leaderboard events, this feature runs within a 1–2 hour window, encouraging focused competition and repeat sessions. Players participate in knockout-style races with a real-time leaderboard and tiered rewards for top performers. Built on proven engagement drivers such as time pressure, progression, and meaningful incentives, the event aims to increase session duration and frequency. Strategically aligned with business goals, it is projected to drive a 20 percent increase in ARPU and in-game spending. As the point of contact for the feature, the project involved leading cross-functional collaboration across product, UX, animation, and development teams through multiple pitch sessions and iterative design discussions. Integrated seamlessly with the Wizard of Oz theme, the event offers clear mechanics, satisfying visual feedback, and a fresh competitive experience.