An iNinja is a master of iDevices (iPhones, iPads, etc) possessing skills to own (or pwn) networks and other electronic environments. And though iNinjas are masterful, they also posses a willingness to help and mentor others in the arts.

Got the covid-19 vaccine

Great game released over any platforms.
Features a ninja that violently kills anything that gets in his way, including his sensei. The "I" stands for iron. Therefor the main charactor , Ninja, is an "Iron Ninja". The whole game reaks of bad karate movies!

The cause for everything.
Your mistakes, another word used to be sneaky.
For your everyday use.