DOP 5: Delete One Part represents a distinctive entry in the mobile puzzle genre, developed by SayGames Ltd. The game distinguishes itself through a novel core mechanic where players must identify and remove specific portions of illustrated scenes to solve contextual puzzles. This approach combines elements of visual deduction, pattern recognition, and lateral thinking, positioning it between traditional find-the-difference games and more complex puzzle adventures. The gameplay revolves around selecting which segment of an image to erase using intuitive touch controls. Each level presents a unique scenario with textual prompts guiding the elimination process. The mechanics require careful observation of visual details and understanding of spatial relationships. Progression unfolds through increasingly complex puzzles that incorporate optical illusions, perspective tricks, and humorous scenarios. The game employs a free-to-play model supported by advertising and optional hint systems accessible through ad views. User experience is characterized by minimalist interface design that keeps focus on the puzzle visuals. The touch-based erasure mechanic provides immediate tactile feedback, though some users report inconsistent detection when selecting small image elements. Real-world usage patterns show short session gameplay suitable for casual engagement, with puzzles typically solvable within 30-60 seconds once the solution is identified. The difficulty curve escalates noticeably after approximately 50 levels, requiring more sophisticated analytical approaches. User feedback indicates generally positive reception with some consistent criticisms. The June 22nd review from Melody notes that 'the game is very good if you want a challenge' but highlights 'WAY too many ads' as a significant drawback. Pavel G.'s June 19th review echoes this sentiment, describing the experience as 'really fun but after some levels it gets boring and too easy' while criticizing intrusive ad implementation. These concerns contrast with enthusiastic but less substantive five-star evaluations that praise the core concept without addressing specific execution details. The game demonstrates strengths in innovative puzzle design and accessible mechanics but suffers from aggressive monetization that disrupts gameplay flow. While the core concept engages puzzle-solving instincts effectively, the advertising frequency and repetitive nature of later levels limit long-term appeal. DOP 5 works best for casual players seeking brief mental exercises rather than dedicated puzzle enthusiasts looking for deep, sustained challenges. The experience would benefit from rebalanced ad placement and more varied puzzle mechanics in advanced stages.