Boo would work, they're not typically presented as being that strong a minion physically. I counted the number of (max) punches to break each rock.
Small rocks - 4 punches
Medium rocks - 7 punches
Big rock - 14 punches
And it looks to be either fragmentation or violent fragmentation, leaning towards the former.
Small rocks - 4 punches
Medium rocks - 7 punches
Big rock - 14 punches
And it looks to be either fragmentation or violent fragmentation, leaning towards the former.
Goomba doesn't destroy the roulette ball. If he did, he wouldn't be running his casino very well. XD
Rocky Road (minigame)
Problem is, it's MP6. Meaning the least powerful Playable Characters are probably like.... Boo, Koopa Kid, Toad & Toadette, I guess?
In theory, you MIGHT be able to argue scaling the Shy Guy drivers IF the broken boulders, like... explode & send their fragments in the directions of the drivers who sit idly waiting in their open-top cars behind their windshields.
But that'd mean it's Fragmentation/Violent Fragmentation for those scaled.
There's also the issue the boulders take multiple hits to break, & I'm not sure how many of which type of hits, minimum or maximum, the boulders need to be broken.