The Samurai pacman food is ALL you need to raise a frog. Mikesfrog, who breeds horned frogs, will testify that it's truly a great food source for pacmans, besides that it's on the expensive end of food options.While I think it's a "good" food, I don't think it's the perfect all around food. The package says "you can grow a tadpole to adult frog with this pacman food only. The pacman food contains all necessary nutrients for frogs. No other supplements necessary [sic]." However, as we all know, feeding the whole animal e.g., fish, to a frog would be much more nourishing (because of the micro nutrients of the viscera and the organs) than feeding it a fish fillet. So while the pacman food may be one option, adding a varied diet of insects, worms, fish, an occasional mouse would make for a healthy and happy, not to mention long lived, frog!
Like how it's advertised, you don't even need to add other supplements (vitamin and calcium) because it has them all.
While I do agree with you feeding your frog with variety of food items is always good, but honestly samurai pacman food really is all you need. Personally I choose to feed my frogs mostly nightcrawlers (70%), crickets (20%), and pacman food & molly & pinky & beef heart (10%), because it's more fun and economically sound for me than feeding samurai pacman food exclusively.