The game invites users to pinch their cheeks until they leave a lasting bruise.
It became particularly popular in Italy, which prompted scrutiny from the countrys competition regulator.
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TikTok has disputed the decision.
But the pain in Europe pales in comparison to the apps problems in the US.
Lawmakers said the ruling was required to stop TikTok from sharing data with the Chinese government.

They also warn that Beijing could use the app for censorship and propaganda.
TikTok has repeatedly denied such claims.
A ban would also anger numerous American citizens.
Millions of them now face losing access to TikTok.
On the plus side, that could make the app more attractive to those of us in Europe.
Story byThomas Macaulay
Thomas is the managing editor of TNW.
He leads our coverage of European tech and oversees our talented team of writers.
Away from work, he e(show all)Thomas is the managing editor of TNW.
He leads our coverage of European tech and oversees our talented team of writers.
Away from work, he enjoys playing chess (badly) and the guitar (even worse).