Effect: Create duplicates of yourself, which attack your opponent repeatedly with great speed.
Other: It was in the card folio Jonathan had. It was stolen by the Alpha Gang, but was reclaimed by Dr. Taylor, who gave it to Rex. It was Ace's second Move Card. Sheer used another with her Megaraptor (Meg), but it was countered by Ace's Ultimate Wind.
In the anime, Wind Dinosaurs using this Move usually duplicate while rushing towards their opponent and then continue to run in a circle while enveloping the opponent, making it look similar to Mayfly (since they score similarly high numbers of hits). In the arcade, Wind Dinosaurs duplicate into only six copies that surround the opponent while standing still, then rush into the center to attack (thus only scoring six hits).
Also, it can be noted that in the Anime, the animation for Ninja Attack doesn't show the attack going for the center of the opponent. Instead, a small triangle can be seen. This can be seen clearly in Ninja Nightmare!, when Ace uses it against the Deinonychus trio.