Hi Hi Puffy AmiYumi - Season 3 Episode 26 Gridiron Maidens
Overview: Ami joins Kaz's football team, not knowing that this is a dangerous sport. Kaz tells the security guard not to let Yumi in, because he does not want her to stop Amy playing. Yumi dresses like a cheerleader and gets in. Seeing that Ami doesn't have a chance against the other players, Yumi helps her without Ami realising it.