Timed levels are lost in a particular way. Not by moving too slowly, but by reaching the last twenty seconds with three gems missing and no idea where to look — which is a coverage failure that happened two minutes earlier.

The opening thirty seconds

What you do first determines whether the endgame is a formality or a panic.

Start a perimeter sweep immediately. Follow the outer passages until you come back around. This covers a large fraction of the map with almost no backtracking, and it gives you a frame for everything that follows — outside done, inside remaining.

Do not chase the first valuable gem you see. Deviating from a systematic route in the first ten seconds is how coverage gaps start. The gem will still be there on your inward pass.

Note where the rooms are. In cave layouts the chambers hold the dense, high-value clusters. Knowing where they are while you are still on the perimeter lets you plan the inward pass properly.

Weave in wide passages from the start. It is a habit, and habits are easier to start than to switch to. In Treasure Tunnel especially, a straight sprint through a three-tile tunnel reveals neither wall.

Track coverage, not the clock

This is the single most useful shift in mindset for timed levels.

Watching the clock tells you how much time is left. It does not tell you what to do with it, and under pressure it produces the worst response available: moving faster in random directions.

Tracking coverage tells you where the remaining gems can be. If you know you have properly swept the outer ring and two of three chambers, the missing gems are in the third chamber or in the passages you crossed quickly. That is actionable.

Practically, hold a rough mental map of three categories:

  • Properly covered — walked, weaved, revealed.
  • Crossed quickly — passed through in a straight line, so edges unrevealed.
  • Not visited.

When gems are missing, they are in category two or three, in that order of likelihood. Category two is the one people forget, because it feels like it has been done.

Power-up priority

Timed levels have a clear priority order, and it is different from every other category.

1. Speed Boost — take it immediately. In a timed level, speed is coverage and coverage is the scoring mechanism. There is no reason to save it and no situation later where it is worth more than it is now.

2. Gem Vacuum — save it for a dense chamber. Clearing a scattered room in one pass rather than three saves several seconds, which converts into bonus points at fifteen a second. Do not waste it in a corridor.

3. Gem Magnet — moderate. Useful for sweeping a chamber slightly faster, but less valuable than in a scrolling game because nothing is escaping you here.

4. Shield — situational. Worth having if roaming hazards are costing you energy, because being sent back to the entrance costs both time and your chain. Less valuable than speed.

One thing worth remembering: a vacuum cannot collect hidden gems that have not been revealed. Routing across the map to vacuum an unexplored chamber collects nothing. Reveal first, sweep second.

The endgame

With three gems left and thirty seconds on the clock, the instinct is to move fast and look everywhere. That is almost always wrong.

Go, in this order:

1. The widest space you crossed in a straight line. The most likely answer by a wide margin. Weave it this time.

2. Any stub you turned around in. A short dead-end you glanced down and left is unrevealed at its far end.

3. The area around the entrance. Excluded from dense placement but not from placement, and swept least carefully because you left it in the first two seconds.

If none of those produces anything and the clock is nearly gone, accept the timeout rather than sprinting randomly. A timeout loses the clear bonus; it does not lose the gems you already banked, and the run continues.

Do not forget the bonus

The last thing, and the one that changes how the whole level should be played.

Clearing a level awards 300 points plus fifteen points for every second still on the clock. A level cleared with forty seconds remaining is worth an extra 600 — twice the clear bonus itself.

Two consequences.

Finishing early is worth real points, not just safety. An efficient sweep that clears with time to spare outscores a thorough one that finishes with two seconds left, even though both cleared.

But a timeout forfeits everything. The clear bonus and the time bonus both vanish. So the correct play is not to gamble on speed — it is to sweep methodically enough that you clear comfortably, and let the leftover time be the reward for having done it properly.

Efficiency and safety point the same direction here, which is unusual and worth taking advantage of.

Key takeaways

  • Start with a perimeter sweep — it covers the most ground per second and frames the rest of the level.
  • Knowing which regions you have properly covered is worth more than knowing how much time is left.
  • Take speed immediately in a timed level; it converts directly into coverage.
  • Finishing early is worth fifteen points a second, so a clean clear beats a complete one.

Frequently asked questions

Should I rush at the start or pace myself?

Neither. Sweep methodically from the beginning with a perimeter route. Rushing early produces incomplete coverage that costs you far more time later.

What do I do when the clock is nearly out and gems remain?

Go to the widest space you crossed in a straight line. That is where uncovered ground almost always is, and random searching in the last ten seconds rarely finds anything.

Is the speed power-up worth taking?

In a timed level, immediately and always. Speed converts directly into coverage, and coverage is the scoring mechanism.

Is it better to clear slowly or risk a fast clear?

Clear cleanly. The time bonus rewards finishing early, but a timeout forfeits the clear bonus entirely, so the safe complete sweep is usually the higher expected score.

Put it into practice

Reading about collection routes only gets you so far. Pick a game and try one idea from this guide on your next run.

Written by Alex Morgan

Browser Games Editor & Interactive Gaming Content Specialist

Alex Morgan has spent more than eight years working with browser gaming content — writing about arcade mechanics, testing HTML5 games across devices, and breaking down why some collection systems feel satisfying while others feel hollow. Alex builds the test plan for every game we publish and writes the guides that explain the scoring underneath them.

Last reviewed on 13 September 2026.

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