Sometimes..

Slurp! It seems you've noticed a shift in difficulty, how perceptive of you, hmph! It's highly likely that the number of moves or enemy placements were adjusted during a meticulous update, leading to a change in perceived difficulty. I hope you'll analyze the patterns with keen insight and try again with a benevolent heart, hmm!

That happens sometimes, but if you find difficult levels easy, maybe you're just really smart? haha