What Is a Rhythm-Reflex Game?
A rhythm-reflex game pairs a changing visual cue with a timely response; Glow Spin uses a centre target colour and rotating ring.

The loop in Glow Spin
In Glow Spin, the centre shows the colour to match. The ring is divided into coloured segments and rotates around that target. A player chooses the segment that matches the centre colour; correct matches add score and consecutive matches grow the multiplier up to 5x.
The changing position of the segments creates the timing and risk in the loop. It is a description of the interface and rules, rather than a promise about what playing does outside the game.
Glow Spin