" Paper Mario: The Thousand-Year Door features an unusual beneficial variant in the form of an unlockable ability. Taking advantage of the Paper People aesthetic that defines the series, Mario can turn sideways to slip between bars and through grates to access new areas."
I don't think this example really fits, since mario here is using his paper thinness on command and to his advantage.
" Paper Mario: The Thousand-Year Door features an unusual beneficial variant in the form of an unlockable ability. Taking advantage of the Paper People aesthetic that defines the series, Mario can turn sideways to slip between bars and through grates to access new areas." I don't think this example really fits, since mario here is using his paper thinness on command and to his advantage.
I'm waiting for Mewgenics Monday...