Blink Stalker

Want somebody dead? Just provide the name, this assassin will do the rest. It can teleport 4 tiles every two seconds to reach the target.

    Decide on bomb chemicals. Separate the contents into two beakers. The best one that I've found is a 45u beaker of 15u Diethylamine, 15u Iodine, and 15u Phosphorus. The second beaker would contain 15u Hydrogen. This combines to make a Meth Explosion that kills the target instantly while minimizing collateral damage.
    Scan the first beaker with the bot. Drop both the bot and the beaker on the ground next to each other. The bot will automatically fill its cyrobeaker with the first beaker.
    Repeat for the second beaker.
    Give the bot an inconspicuous name, like PETBOT. Or HUGME.
    Activate the bot. You will be prompted with a text input field. Enter the name of the person that you wish to kill.
    Drop the bot on the floor at a maximum distance of 8 tiles from the target. The bot will scan targets within 8 tiles for the inputted name. It will roll toward the person.
    Once the bot is directly under the person (or reaches a custom distance) it will, with no delay, activate its chemical pump. The bot will automatically transfer 50u from the cyrobeaker into a regular beaker, activating the reaction.
    50u of Meth Explosion will destroy the tile that the bot is in and cause 1 tile of extra damage. It is not enough to kill passerby. This tactical explosion minimizes casualties and collateral damage. The target will die instantly. Probably with their limbs blown off.

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edit: Just updated the code and added a new feature. The robot can now effectively teleport. Four locomotion circuits allow the robot to travel 4 tiles instantaneously every 2 seconds. From the perspective of the target, the bot will seem to "blink" toward them every 2 seconds. This minimizes the threat of detection and capture.