# What is the best anime opening by Flow?

> Rock-driven theme songs that kicked off ninja sagas, rebel uprisings and mecha adventures. Some are decades-old fan anthems, others are recent seasons still finding their audience.

*By YPB Team · Published October 18, 2026 · https://youpick.best/ranking/what-is-the-best-anime-opening-by-flow*

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## Current results (no votes yet)

1. **Steppin' Out** — score 1000/1000
   A funky, fast-paced opening for Durarara!!x2 Ketsu.
2. **United Sparrows** — score 600/1000
   The opening for the mecha adventure Back Arrow, a modern-era FLOW anthem.
3. **World End** — score 599/1000
   The darker, more dramatic opening to Code Geass R2.
4. **Gold** — score 599/1000
   A bright opening for Boruto: Naruto Next Generations, bringing FLOW back to the franchise.
5. **Colors** — score 0/1000
   Code Geass: Lelouch of the Rebellion's iconic first opening, a fan-favorite anthem.
6. **Word of the Voice** — score 0/1000
   Persona -trinity soul- opening with a moody, rock-driven edge.
7. **Hey!!!** — score 0/1000
   A cheeky, high-tempo opening for the delinquent comedy Beelzebub.

Tags: music, rock, animation, japan, flow