Start with reachable pieces
Move through clusters of small objects that fit immediately rather than repeatedly pressing against something too large. Each swallowed piece grows the hole, so track visible changes and look again at nearby objects that were previously out of reach. A sweep that crosses several small targets can be more productive than a long trip to one oversized object.
Use size changes to revise the route
When the hole grows, reassess the district. Larger items that were blocked may now fit, which changes the best next move. Clear around those objects so you can approach them without wasting movement. The district clear adds time and introduces a bigger area, so use the extra time to orient yourself before sweeping into the next set.
Watch the timer, not just the hole
A rapidly growing hole feels rewarding, but leaving scattered accessible objects across the city can lengthen the clear. Plan a path that collects nearby groups and visits the edge only when a large target warrants it. Since the next district appears after clearing, every stage is a new layout; repeat the size-based process instead of assuming the prior route still works.
Questions about Void Hole tips
How much time does a clear add?
Clearing a city district adds ten seconds and drops in a bigger district.
Can the hole swallow every object right away?
Only objects that fit can be swallowed. Grow by collecting smaller pieces, then revisit larger objects as the hole expands.