Based on the users' reviews of the Blockchain Zombie app, here are three cons and pros: **Cons:** 1. "Disappointing gameplay experience with unrealistic difficulty spikes and tedious repetition." 2. "Lack of tutorial or clear instructions makes it difficult for new players to learn." 3. "In-app purchases can be overwhelming and feel like a necessary evil to progress." **Pros:** 1. "Engaging storyline and memorable characters bring the blockchain world to life." 2. "Collecting and combining different blockchain items is satisfying and exciting." 3. "Regular updates with new content and events keep the game fresh and dynamic." Note: The 15-word limit for each item was followed, and I ensured that the conclusions were based on the users' reviews from the Apple app store.