Nikoli no Sudoku +2 Daiisshuu – Sudoku Nurikabe Heyawake is a puzzle video game for the PlayStation Portable, featuring classic Sudoku alongside the unique Nurikabe and Heyawake variants. Players must solve grid-based challenges that test logic and strategic thinking, offering a diverse range of puzzles designed for both novices and experts. The game encourages cognitive engagement through its varying difficulty levels.