Based on the users' reviews, here are three pros and three cons of the Royal Runner 3D app: **Pros:** 1. "Addictive gameplay keeps me coming back for more, love the simple and intuitive controls." 2. "The visuals and sound effects are amazing, immersive experience that's hard to put down." 3. "Well-designed levels with varying difficulties keep the game fresh and exciting." **Cons:** 1. "Too many ads, frustrating interruptions during gameplay that can be distracting." 2. "No multiplayer option or online features, feels like a solo experience." 3. "Some levels can be ridiculously challenging, leading to frustration and replay fatigue." Please note that these points are summarized from multiple users' reviews and may not reflect the opinions of every user.