I would rather have posted this in mod making, but honestly, it's pretty much done, functionally, so it probably would have been moved.
Just to keep this a quick post (I'll improve it as I release more), this is an automatic base sweeper triggered by enemy movement in the tunnel, and the graphic utterly does not do it justice. Try it out, and please rip it apart. It needs sounds and better effects currently, but it works semi-well.
Once again, placeholder sprites (especially on the fire!) but it's semi functional. Spear L fires left, Spear R fires right, duh. The upside down one isn't targeted yet, haven't had time, but it's a proof of concept. Also it burns stuff real good. Tell me what you think, but I'll be adding stuff regardless as time goes on. New flame sprites, sorta, as well as new glow. Also you can actually destroy them now. Still working on balance. Also they shouldn't break off as often, but if they do it's cause you headbutted the crap out of them rather than accidentally brushing them with a feather.
This one I call the Arrow (for now, all names subject to change) but it looks more like it's shooting lightning. Point is, at the moment there's an down and a up firing one. When placed in hallways along the roof or floor respectively, they are completely flush to the surface and undetectable. The AI will notice em occasionally, but another player will walk right into them. They are indestructible right now, and their only real downside is that they get clogged with corpses and become less useful. Working on more directions, don't worry.
UPDATE! NOW WITH GIF (THANKS RASHALN)
Now that I have a gif, it's pretty self explanatory. Pretty much, for all intents and purposes, it IS a wall as far as the AI is concerned. Only when your dudes walk towards it does it open like that to let you through. No fancy special effects, just old fashioned trickery.
