Balls Up is a strong option for learners who already feel comfortable with English and want a more demanding challenge. Listening can be difficult because the dialogue moves at around 131 words per minute, leaving little time to process each line. The language mixes everyday English with a few expressions that need attention, so it works best for learners who already have a solid base. Also, jokes, quick reactions and casual exchanges are a regular part of the dialogue. Because the plot is fairly straightforward, learners can focus more on the dialogue than on figuring out the story. If your English is close to B2/C1, Balls Up can be useful for getting used to faster spoken English.