Thanks for giving it a try!
The navigation could definitely be a bit cleaerer. This is first person. Left and right turn the character and back and forward move you back and forth in the direction you're corrently fasing. I plan to have that more clearly explained in the tutorial.
The hacking is meant to appear wireless. Meaning you just have to be in range of the enemy to hack. I think there is a bug where you can hack without being in range.
You not knowing what exactly it does can better be indicated too. I'm thinking of adding some kind of malfunctioning loop to the robots so that you immediately recognize that something is wrong with the robot due to you hacking it.
The left and right hacking sounds are panned to the left and right. I can try panning them a bit more.
I plan on doing quite a few more updates to this.
Thanks again for checking it out!