Level 25 of the game presents a significant challenge for players, with one user sharing their puzzle layout and expressing frustration at being stuck. Progression to level 29 is noted, which is also difficult, and one player mentions completing the game but encountering a blank level 41. A bug is discussed regarding level 36, where a car can be pulled out of the grid, with differing opinions on whether this was an intentional design choice or an actual bug. Players share experiences of easily completing the first 20 levels but then facing increasing difficulty in later levels, particularly level 39, which has proven to be a tough hurdle for several players. The game is praised for its engaging mechanics and competitive elements, especially in racing modes against friends.