Cardioid (TESTBED)

The Cardioid  is a Testbed Misc tank that upgrades from Cycloid.

Design
The tank looks like a Basic with a thinner, longer, Triangle-colored decorative barrel layered over it. In other words, it looks like the Cycloid but its white decorative barrel is made orange.

Technical
Like other members of the Cycloid branch, the Cardioid fires a particular shape of bullets. Rather than Cycloid's plain circle though, the Cardioid fires a cardioid formation of bullets, which looks mostly circular with a dip in the front. Strangely, unlike Cycloid and its other branches though, its bullets do not fly forward and all fly outward from the tank.