1. Introduction of the game:
Toy Blast is an engaging and colorful puzzle game that invites players into a whimsical world filled with toys and challenges. Developed by Peak Games, it has captured the hearts of puzzle enthusiasts around the globe with its unique match-two gameplay mechanics. Players must match blocks of the same color to clear the board and complete the levels, using various power-ups and combining blocks for huge blasts.

2. All characters and levels of the game:
The game features an adorable cast of characters led by Amy, the little girl who players assist in collecting her precious toys by solving puzzles. The game is structured into numerous levels, each with distinct challenges and objectives. As players progress, they unlock new episodes and enchanting worlds, with regular updates adding fresh levels to ensure a continuously exciting experience.

3. What attracts users most to the game:
Toy Blast's simple yet addictive gameplay, along with its bright graphics and endearing characters, draws players back time and time again. Its unique power-ups, such as the Roto Hammer, Paint Brush, and Box Punch, add a strategic layer to the game, providing players with satisfying ways to clear the puzzles and progress through the levels.

4. Why it is popular:
Toy Blast owes its popularity to the seamless blending of user-friendly mechanics, challenging yet fair puzzles, and a rewarding progression system that keeps players from feeling stuck for too long. Social integration allowing players to compete against friends contributes to its widespread appeal, as does its availability across multiple platforms.

5. When the game was released and how many versions are currently available:
Toy Blast was first released on November 27, 2014. Since its launch, it has seen numerous updates and improvements. Although referred to in singular, the game doesn't have multiple 'versions' per se, but rather continuous updates to the same game that expand levels, add features, and improve the overall experience.

6. The most difficult part of the game:
Players often find the increasing complexity of levels as the most challenging aspect of Toy Blast, with obstacles such as balloons, hats, and other toys that require strategic thinking and proper power-up usage to clear. Limited moves add to the difficulty, demanding calculated decision-making to conquer the toughest stages.

7. Strengths and weaknesses of the game:
Among Toy Blast's strengths are its captivating and interactive design, easy-to-learn gameplay, and a gratifying sense of progression. However, as with many freemium games, its weaknesses might be seen in the occasional steep difficulty spikes, which may prompt players towards in-app purchases for additional lives or power-ups.

8. What other games have been developed by the same developer:
Peak Games, the developer of Toy Blast, is also responsible for creating the wildly successful "Toon Blast," which shares many similarities with Toy Blast in terms of gameplay and charm. Additionally, they have developed other popular titles such as "Lost Jewels" and "Peak Solitaire," showcasing their ability to create engaging and entertaining puzzle games across different styles and genres.