>>9320155I believe that he’s thrown then in Renegades, maybe in SpyTroops too, and in Valor Vs. Venom he used that wrist-mounted-device-vambrace-thing (one of the gimmicks at the time) to fire out shurikens. He’s also probably thrown them in Sigma 6, assuming since it’s technically an anime and such.
Here’s the scenes from VvV:
https://m.youtube.com/watch?v=0y8Xn-yf51s 