In this activity, students will review key concepts from the first third of the course by solving hidden computer science terms one letter at a time. All words come from topics we have already learned, including: Hardware vs. software, Input > Process > Output, CPU, RAM, Storage, Algorithms and Flowcharts, troubleshooting steps, binary and data representation, operating systems, networking basics, digital citizenship and responsible technology use. Students must use prior knowledge, logic, and critical thinking to identify each term. No notes, internet searches, or AI tools are permitted. This is a human brain,, offline review. Each incorrect guess brings the system closer to failure. Each correct guess demonstrates mastery of core concepts and technical vocabulary. OBJECTIVE: Reinforce terminology, strengthen recall, and practice analytical thinking in a fast-paced review format.