A working client-side checklist accepts checkpoint 1–14 state and returns count, percentage and next incomplete checkpoint, with browser-only persistence and no Roblox sync claim.
Start here when this is the exact player task you searched for. The sections below turn the question into steps, checks, and next pages.
For drive a bus checkpoint tracker, use the quick answer first, then check whether the topic affects a code reward, event, item, unit, map, build, value, or upgrade path.