Parabol

The  is a Testbed Misc tank that upgrades from Cycloid.

Design
The tank looks like a Basic with a thinner, longer, Pentagon-colored decorative barrel layered over it. In other words, it looks like the Cycloid but its white decorative barrel is made purple. It also looks identical to the.

Technical
Like other members of the Cycloid branch, the fires a particular shape of bullets. Rather than Cycloid's plain circle though, the fires a parabola with the open end facing away from the tank.