Arcade bugs often depend on timing, frame rate, or focus. Name the game under Arcade Games, mode, score, device, browser, and input method.
Record the starting state and exact sequence: when the key or touch was pressed, whether the page lost focus, what the game should have done, and what happened. For collision bugs, include a short recording or screenshots and the approximate frame. For score or high-score issues, test after a restart without destroying the original evidence. Note reduced-motion and accessibility settings if they may affect animation.
Separate a balance complaint from a reproducible rule failure. A useful report lets a developer recreate the same moment and see whether it is an input-handling, physics, or persistence problem.