Spanish 21 is similar to traditional Blackjack but with more options and payouts. One difference is that all numbered 10 cards are removed from the deck leaving 48 cards in each deck. Jacks, Queens and Kings count as 10. Aces count as 1 or 11 (whatever is to the Player's advantage).
The No Bust element introduces new rules that allow players to win if their hand total surpasses the dealer's busted hand. The objective in No Bust Blackjack is to avoid going over 21.