The paper explores the implementation of holograms in an educational serious game, with an emphasis on contemporary digitization of the classroom and the application of universal design principles to ensure wide accessibility and benefit for all students. The HoloZoo application was developed for the purposes of research for writing this paper and as part of the Play2Green project. This app allows students to explore protected animals, take quizzes and learn interactively through holographic displays. Analyzing hologram technologies, the research provides insight into their nature and benefits in education and examines in detail how holograms provide visual, interactive, and emotional benefits, enabling students to gain a deeper understanding of complex concepts. The paper investigates the current application of holograms in education and points out their possibility of improving interaction and student engagement. It breaks down the notion of serious games that provide an interactive and fun experience that encourages students to engage and actively participate in educational materials. Serious games represent an innovative approach that combines game elements with educational and useful goals. These games offer several significant benefits that make them a powerful tool for education, training and solving real-world problems. In conclusion, the research confirms the importance of holographic technologies in education and explores their impact on the learning process. It emphasizes the need to adapt the classroom to the digital environment to allow all students to have an equal opportunity to learn, supported by universal design that ensures accessibility and inclusiveness.