Orientation first
Most games are landscape. Lock Orientation to landscape in Reel before you start, hold the phone that way, and the recording will not flip when a menu appears in portrait.
Where the bubble goes
Games put their HUD in the corners — health, minimap, controls. Choose Picture in Picture, start the game, and drag the bubble to whichever corner the game leaves empty. Do it before the match; you will not want to during.
Game audio and your voice
Keep both, as separate tracks. Game audio is the atmosphere; your voice is the commentary. Recording them separately means you can lower the game under your voice afterwards, or cut a match's music if a platform objects to it. Turn off Record audio in single track.
Long sessions
1080p for an hour is a large file. For sessions you will trim to highlights, 720p is often enough — games are big shapes and motion, not small text. Storage and battery both run down; plug in.
Performance
Recording costs the game some headroom. Demanding games may drop frames while capturing at native; 1080p or 720p leaves more for the game itself.
Asked often enough to write down.
Will the game's anti-cheat block recording?
Screen recording through ReplayKit is a system feature and games generally allow it. A few block their audio; that is case 4 in the no-sound guide.
Read next
Does iPhone screen recording record sound? Yes — but not the half you expect
How iOS captures internal app audio and your microphone in a screen recording, why the two behave differently, how to get both, and what iOS will never let any recorder capture.
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Keep a screen recording in portrait — orientation lock, explained
Why a screen recording flips to landscape halfway through, what iOS's rotation lock does and does not do, and how Reel's orientation lock keeps the layout fixed.
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