This is a take on Qix (pronounced "kicks"), an arcade game released by Taito America Corporation in 1981. The objective of Qix is to fence off, or claim, a supermajority of the playfield.
Use the W A S D keys to move. Press the space bar to draw lines.
Connect your line to the edge of the board, the start point of your line, or existing captured areas.
Capture 75% of the board and you win!
Watch for enemies though, if they hit you or the incomplete line you're drawing, it's game over.