Hacx is freeware.
Best if you get the whole wad, maybe.
Oh, about the drawings I posted.
Cyborg parts and stuff. Two ocular upgrades.
The zoom thing works like this. Hold button to (kinda) slowly zoom in. Max zoom of 125%, do 125% damage. (More with further upgrades?) Mwahahahaha!
The second one is sort of a scouter that can find
POWER LEVELS (max hp = power level) (groups of enemies get clumped together into a large sum). Can also find keys, exits and maybe even secrets with the right upgrades. Could also point out weak spots on enemies... but that's sorta out there.
Merged the borg and melee guy and got mini Shoulder Rockets. Fast, homing, fun.
The integration bar could be for something like this. You install a high grade upgrade but don't have the know-how or software/hardware to get the most out of it. Could slowly go up with time and use or with snappy firmware upgrades. Yeah!
Or it's just a thing that shows up whenever you install an upgrade. Meter full = good to go. Meter building = can't use it yet, son.
The other stuff is just armor. Perhaps your fancy body can become damaged. Lowering integration and ultimately destroying parts. Gotta keep your tech safe.
Oh, and for potential ocular upgrades, how about a quick blackout whenever you switch some eye part out?

MY IMMERSION!