Check out the demo on Steam or here on IndieDB
The defense of Camp Famis consists of three jump pads, each connected to a group of three fetchers. Whenever you use a jump pad, the associated fetchers are activated for one second. This is a delightful combination because the spiders get teleported right into the jump pad's blast wave.
There are no cooldowns, i.e. you can use the jump pads as often and for as long as you want. Just keep in mind that they don't protect you from taking damage. I recommend using each jump pad only once or twice in a row and then switching to a different one.