From the Super Mario Wiki, the Mario encyclopedia

VividBuffalo's 1,000,000 $ Question:[edit]

Are "Splorches" inspired by "Floating Faces" From Super Mario Land 2 Six Golden Coins?
The preceding unsigned comment was added by VividBuffalo (talk).

They don't look similar and have very different attack patterns, so I don't think so. PMCS Mustard Cafe Sign.png Scrooge200 (talk) 15:24, May 22, 2020 (EDT)
As the article mentions, their internal filename MeraWanwan indicates that they were based on rolling Chomps. LinkTheLefty (talk) 16:11, May 22, 2020 (EDT)