Cool concept. I like combination of cloning and stealth gameplay.
The game tutorializes every enemy which is good. Currently they explain what the enemy does but the player is meant to exit the level after reading the description. You can make the tutorial levels such that they show the mentioned enemy and the player has to understand and deal with the enemy to go to the next level. Doing this can make the tutorial levels more engaging.
The levels can be quite difficult but it was enjoyable to find a path though. Overall a fun entry!