1. Introduction of the game:
Bloons Monkey City is an exciting and addictive tower defense strategy game that combines elements of city building and bloon popping. In this game, players take on the role of a monkey city mayor, tasked with defending their city against waves of colorful and mischievous balloons known as Bloons. With an array of monkey towers and upgrades at their disposal, players must strategically place their defenses to thwart the relentless Bloons and protect their precious city.

2. All characters and levels of the game:
Bloons Monkey City introduces a vibrant cast of characters, including different types of cheeky Bloons, charming monkeys, and powerful heroes. Each character possesses unique abilities and strengths to aid players in their quest to dominate the Bloons. Additionally, the game features a variety of engaging levels, ranging from lush forests to treacherous mountain ranges, providing diverse and challenging environments for players to navigate.

3. What attracts users most to the game:
One of the primary attractions of Bloons Monkey City is its addictive tower defense gameplay. With a wide range of towers and upgrades to choose from, players can experiment and strategize, creating different combinations to effectively counter the Bloons' waves. The ability to construct and design their own monkey city, personalized with various buildings and enhancements, further engages players and fuels their sense of accomplishment.

4. Why it is popular:
Bloons Monkey City has gained immense popularity due to its engaging and accessible gameplay. Its vibrant and colorful visuals, along with its light-hearted and humorous atmosphere, appeal to players of all ages. Moreover, the game's frequent updates, events, and challenges provide a continuous stream of fresh content, ensuring long-term player engagement and retention.

5. When the game was released and how many versions are currently available:
Bloons Monkey City was initially released on November 25th, 2013. As of now, there are multiple versions of the game available across different platforms, including iOS, Android, and web browsers, allowing players to enjoy the Bloons popping fun on their preferred devices.

6. The most difficult part of the game:
The most challenging aspect of Bloons Monkey City lies in strategically managing resources and balancing the use of limited space within the monkey city. Players must carefully decide which buildings to construct, which upgrades to prioritize, and where to place their defenses to effectively defend against increasingly difficult Bloons waves. This requires careful planning and decision-making skills, making the game a satisfying challenge for players.

7. Strengths and weaknesses of the game:
One of the major strengths of Bloons Monkey City is its addictive gameplay, which provides a perfect blend of tower defense strategy and city building elements. Additionally, the frequent updates and events ensure a fresh and dynamic experience for players. However, some players may find the game's difficulty level to be quite steep, which can be a potential weakness.

8. Other games developed by the same developer:
The renowned developer behind Bloons Monkey City, Ninja Kiwi, has also developed other successful titles in the Bloons series. Some notable games include Bloons TD 6, Bloons TD Battles, and Bloons TD 5, each offering their own unique take on the tower defense genre. These games have amassed a large following and have further solidified the developer's reputation for creating engaging and entertaining experiences.