Play interactive games to predict monster futures. Choose from three difficulty levels. Engage in games like MONSTER LAB and A.C.A.A. Track progress and unlock new content. Share achievements with others.
Simulate the HP-45 scientific calculator with photo-realistic design and animated keys. Perform all original functions and operations. Access a secret stopwatch. Adjust processing speed between real-time and simulated.
Simulate a programmable calculator with input. Run HP-65 programs, store and retrieve data from magnetic cards. View and edit calculator memory. Access historical documentation and user guides.
