Implants provide you with new abilities. There are tens of Implants to use in PositronX and they can totally change the way you play the game. Time can be slowed down, stopped and rewound, you can fly, wall jump or teleport; space can be traversed in an instant. You can stop bullets in mid-air and send them back to the attackers and much more. There are no limits.
PLAY. DIE. REPEAT.
Based on the setup you choose to start with and the choices you make during the game, the play-through can be either easier, harder or almost impossible to beat. But don't take it personally if you die too often, you are supposed to. And you will. There is an ever growing database with information that updates with each run. After a few deaths you should be getting the hang of it and you will be doing a lot better. In this case what kills you just makes you stronger.