Check out this great Sentai / Power Rangers Parody video, found via the Best Week Ever Blog:
Rolling Bomber Special!
I have seen "Rolling Bomber Special" several times, and I really like it! "Power Rangers" fans may not get all of it because it's specifically for Japanese fans of the Super Sentai genre, but they will recognise some traits- the skin-tight outfits, a super finishing weapon, etc. But some cultural and parrody nuances may not make much sense, as "PR" is significantly altered (re: 'dumbed down') for the younger audience it targets.
[Mumbling to himself: 'Blasted American censorship rules...']