(If you look at meeples from the wrong angle they look retarded.)
If you read that sentence as written, it's quite offensive.
To whom? People need to stop being offended for other people. The term "retarded" as a Pejorative has a long history, and hasn't had the connotations *you* likely think it does in my area for as long as I have lived.
The use of the word is to indicate strangeness, or atypical behavior, not mental illness.
And since we arn't allowed USING the term "retarded" (Which is a perfectly fine word, with a scientific meaning) to refer to the "mentally challegned" anymore, then it's fair game isn't it?