Your mission is to guide Hank safely through a strange area of Nevada. Plan his moves wisely and make sure to think 4th dimensionally. Use the WASD or ARROW KEYS to plan your route. Then click the left mouse button to mark attack nodes. Once you have everything setup, click the Action button to see the result. You gain AP for successful missions and you can use these AP to upgrade your arsenal.
The sensors on level 3 remove the lasers blocking the doorway. Two-handed weapons (shotgun and AK) only fire forward. Remove assigned shots by clicking on an already-placed node. Broken glass shards can interfere with your shots, so wait a while after shooting out glass to take aim again.