Crawler

Description
Crawlers are very powerful, slow moving robots summoned by Rob070 in his second phase. Crawlers cannot be blocked in any way. Two crawlers are summoned at a time by Rob070, and they will each launch three bombs towards units/buildings closest to them.

These bombs do not deal much damage, but Crawlers will repeat this process every few seconds.

Crawlers will slowly advance towards the tower spots of refineries. Once they reach a tower spot (They will automatically destroy any present towers) they will plant themselves into the holder, permanently preventing any towers from being built.

Strategy

 * Channelers are already excellent on this boss fight, and they can withdraw much damage to crawlers while also possibly instant killing them.
 * Snipers with the "Lethal Weapons" tech can also instant kill them.
 * Mechs and most other units will not deal sufficient damage quick enough. Therefore, it is advised to not use them.