I actually lost all of the art and documentation for the cards a few months ago when one of my harddrives died. I was expecting it to happen so I backed up my art folder, but I completely forgot that they were in a separate folder on another part of the drive -_-
I'll see if I can remember the basic rules though... each player would have 1-3 Phone Cards (unevolved Denjuu) which are separate from the rest of their deck. The number you can use depends on the lead Denjuu's reception icon, three bars means you can place two more Denjuu down, two bars means one more Denjuu, and one bar means you can only use the lead. (This is to prevent someone from just dropping down three secret/powerful ones like Gentiana, Kaya, etc.)
So basically, say you chose
Crypto as your lead/partner. He has three bars, so you could choose two more backup Denjuu, I'll say
Nejiro and
Gentiana. The reception icons on the backup Denjuu dictate how many turns you have to wait for them to be playable from the start of the battle, 3 bars = 1 turn, 2 bars = 2 turns, 1 bar = 3 turns. So in this case you'd have Crypto to use immediately, Nejiro in 2 turns, and Gentiana in 3 turns.
The next most important part of the Denjuu cards is their Speed stat, order of attack is determined by this. Who moves first in a tie is determined by a coin flip each round. I was also playing with having it so that the fastest Denjuu in play gets two actions each round, but I hadn't figured out if that was overpowered or not.
Some attacks require item cards be attached to the Denjuu, these are things like the Bubble Gum, Sabre, Crane, Solar Panel etc which each have a habitat type assigned to them. I never designed what the item cards would look like, but individual ones would probably allow bonuses if attached to specific Denjuu (ie the text on Gun would probably note that attaching it to Crypto/Berzelia/Tessen would add +10 to their Power or something like that.) Item requirements for attacks are noted by grey or white icons of the required type, so Crypto must have two Forest items attached in order to use Static. White icons mean the required cards are discarded after the attack; Nejiro must have attached (and then dump) three Sky items to use Machinegun.
Evolution also depends on items. For Level evolutions each item has some amount of experience written on it and the total must equal the required level for that Denjuu to evolve, these items don't have to be of any specific type. Crypto evolving into Cryptoride (lv20) would require say, two 10exp items or one 20exp item to be attached to him. These are discarded after evolution.
Reform/Mod evolution requires items of a specific type be attached,
Diablos for example requires either two Mountain or two Grassland items attached to evolve into either of his Mod evolutions. These are also discarded after evolution.
Test/Experimental evolution requires that a specific item card be attached to the Denjuu.
Waratah must have a BioRent 3 attached in order to evolve into Waitah. Again, the item is discarded after evolution.
Evolution cards, and items are all shuffled into the deck, I never figured out how many cards in all were in it though (50? 60? dunno.) IIRC, some amount of them were drawn at the beginning of the game, and after all Denjuu have acted to end a round is the "T-Fanger turn" where cards can be drawn and played from your hand. So the order of each turn would be like.. all Denjuu in play act in order of their Speed, then each player draws a card and can play something from their hand. I suppose the order the T-Fanger turn goes in is up to a coin flip.
Although I had them all written out I can't remember how each of the statuses was meant to work unfortunately, I believe confusion left the victim's target decided by a dice roll and silly things like that >_>