The cardZillion cards were released by Bandai and were exclusive to Toy's R Us. they were sold out of a funky machine that is normally located by the exit of the store (good marketing ploy by the way). The cards could be purchased for 25 cents a piece and the set was 42 cards with some cards being special hologram cards.
This set is one of the more difficult ones to complete since they were only released in Toy's R Us. The cards also could be used to play a simple card game (never tried it though). The cards also had interesting text and storie lines on the back, one of my personal favorate card sets to collect. These are no longer available, but I have limited number of cards so you can complete your sets.
Cardzillion series 2 continued with #43 and was again a 42 card set. The set also had some foil cards and was based on the ninja (third season) of power rangers. This set is no longer available but as with series 1 you might still be able to find it in odd Cardzillion machines. I have a limited number of cards so you can complete your sets.
Series 3 was the first set of Zeo, and to my knowledge was the only set other then series 4 to have anything to do with Zeo. The set was again 42 cards with randomly packed foil cards. This set is no longer available. I have a limited number of cards so you can complete your sets.
Series 4 continues the Zeo set at card #43, and again is 42 cards with some foil cards as well. this set is no longer available. I have a limited number of cards so you can complete your sets.
This is one of the hardest Card sets to find/complete. This set was randomly sent to a select few Toy's R Us and thus was extremly hard to find any of at all! It was again 42 cards and had 7 or so cards dedicated to each ranger. It was a very well done card set. This set is no longer available. I have a limited number All Star Cards available.
I have a very limited number of Masked Rider Cardzillions available.
I have a very limited number of Beetleborg Cardzillions available.