

Q1: This card's effect caused the DP of my opponent's Digimon to become 0. At such times, is the Digimon with a DP of zero deleted?
No, it isn't deleted yet. Once all of the processing for the activated effect has resolved, a rule check will occur, then all of the Digimon with 0 DP are deleted at the same time.
Torajiro Asuka BT22-087 R App Driver/Appmon [Start of Your Main Phase] If your opponent has a Digimon, gain 1 memory. [Your Turn] When any of your Digimon get linked, by suspending this Tamer, 1 of your opponent's Digimon gets -2000 DP for the turn. Then, 1 of your Digimon may app fuse into a Digimon card in the hand. --- [Security] Play this card without paying the cost.
Torajiro Asuka BT22-087 R App Driver/Appmon [Start of Your Main Phase] If your opponent has a Digimon, gain 1 memory. [Your Turn] When any of your Digimon get linked, by suspending this Tamer, 1 of your opponent's Digimon gets -2000 DP for the turn. Then, 1 of your Digimon may app fuse into a Digimon card in the hand. --- [Security] Play this card without paying the cost.
Torajiro Asuka BT22-087 R App Driver/Appmon [Start of Your Main Phase] If your opponent has a Digimon, gain 1 memory. [Your Turn] When any of your Digimon get linked, by suspending this Tamer, 1 of your opponent's Digimon gets -2000 DP for the turn. Then, 1 of your Digimon may app fuse into a Digimon card in the hand. --- [Security] Play this card without paying the cost.
飛鳥虎次郎 BT22-087 R アプリドライヴァー/アプモン 【自分のメインフェイズ開始時】相手のデジモンがいるなら、メモリー+1。 【自分のターン】自分のデジモンがリンクしたとき、このテイマーをレストさせることで、ターン終了まで、相手のデジモン1体をDP-2000。その後、自分のデジモン1体を手札のデジモンカードにアプ合体できる。 --- 【セキュリティ】このカードをコストを支払わずに登場させる。