As is Harry Hill's style, there are occasional risque jokes, but nothing rude is ever explicitly stated. These will most likely go over children's heads.

Harry Hill has a slight obsession with vomiting, and often uses it to create humour. Real vomiting, which some may find distressing, occurs in the What Happens Next segments from S2E2, S2E6 and S3E1. In studio, comic vomiting is often achieved using gunge or foam.