Based on the user reviews of the "Cube Escape: Birthday" app, here are three cons and three pros in English, with 15 words or less for each item: **Cons:** 1. " Too short and difficult to get to next level only a few puzzles." (Source: 2/5 review) 2. " Graphics and sound effects are subpar, disappointing for Rusty Lake games." (Source: 3/5 review) 3. " Can't choose to skip puzzle that don't make sense, frustrating and time-wasting." (Source: 4/5 review) **Pros:** 1. " Challenging yet solvable puzzles, fun and engaging gameplay experience." (Source: 5/5 review) 2. " Great storyline and characters, immersive experience with Rusty Lake's signature style." (Source: 5/5 review) 3. " Puzzle logic is creative and clever, often surprises and delights the player." (Source: 4/5 review) Please note that these are summary points based on multiple user reviews and may not reflect the opinions of all users.