First video demo of level one. This shows the player shooting, ‘hacking’ the tower settings and destroying a barrier. Different coloured objects react differently with each other. If the RGB values of the block are higher than (i.e. brighter) than the barrier, the block which just go through. The barrier is destroyed when its combined RGB values are below 30 (this gets a bit hard to see in the video as it’s very dark). Damage is applied to the barrier by subtracting the colour values, so a pure green block (rgb(0,255,0)) can’t damage a pure red block (rgb(255,0,0)).

You can see the video on YouTube:

Level one demo