Based on the user reviews, here are three pros and three cons of the Rolling Steel: Robot Dinosaur Mech Building Game app: **Pros:** 1. "Huge fun building and customizing robot dinosaurs; awesome concept!" (15 words) 2. "Addictive gameplay with challenging levels and boss battles; great music too!" (15 words) 3. "Excellent graphics, smooth animation, and great variety of parts to collect." (15 words) **Cons:** 1. "Some levels are too hard, even with trial and error; frustrating at times." (15 words) 2. "Occasional lag and connection issues; frustrating when trying to play online." (15 words) 3. "In-app purchases can be a bit excessive; feels like a cash grab sometimes." (15 words) Please note that these are based on the reviews available on the App Store at the time of my assessment, and opinions may vary.