1. The use of Western-style theme songs in Japanese anime is breaking new ground, as seen in the case of "Kaiju No. 8." The anime's opening theme, "Kaiju No. 8 Dai-Kaijuu Sanka," features a hard rock sound and English lyrics, which is a departure from the traditional J-pop or anime-style theme songs. This shift represents a growing trend of Japanese anime incorporating Western musical elements to appeal to a global audience.

2. The decision to use a Western-style theme song for "Kaiju No. 8" was a strategic move by the show's producers. They wanted to create a theme that would resonate with international viewers and help the anime stand out in the crowded anime market. The use of English lyrics and a hard rock sound is intended to attract a wider audience and showcase the show's global ambitions.

3. The success of "Kaiju No. 8" and its Western-style theme song has the potential to influence the broader anime industry. It suggests that Japanese animation studios are becoming more open to experimenting with different musical styles and incorporating more Western elements to appeal to an international audience. This trend could lead to a greater diversity of theme songs and a more globalized approach to anime production in the future.