The Scritchy Scratchy achievement hunt is usually less about raw difficulty and more about run organization. Once your natural progress slows down, completion becomes a routing problem: what can stay in the main save, what should move into cleanup, and which failure-state achievements deserve a separate attempt.
Use a separate cleanup mindset
Achievement guides fail when they assume every remaining task belongs in the current save. In practice, challenge-only goals and risky conditions work best when isolated. That keeps your normal progression run stable and prevents accidental sabotage.
What to finish first
Start with everything a normal efficient run should naturally cover: system unlocks, obvious milestones, and achievements tied to using the game as intended. After that, move to challenge-only or failure-state achievements, then finish with late grind and jackpot cleanup once the list is smaller and easier to audit.
Confirmed names that help with cross-checking
Where players usually waste time
The biggest time sink is replaying long sections of the game without knowing whether the missed achievement is tied to challenge conditions, gadget setup, or prestige timing. Before replaying, reduce uncertainty first. Decide what the achievement probably belongs to, then build the run around that assumption.