Next time you see that "X" on a map, don't just restart—watch the replay and find out why .
While the standard client doesn't natively allow frame-by-frame scrubbing, using mods like Lazer (the next-gen osu! client) gives you a seek bar and variable playback speeds. The "osu!lazer" Difference osu replay viewer
The .osr file format is tiny because it doesn't contain video; it only contains data points. To share your play on YouTube or Reddit: Next time you see that "X" on a
Use OBS (Open Broadcaster Software) to record the replay viewer while it plays. osu replay viewer