A variation of the wave “Shear Stress” that is added recently. The difference is that there’s 4 “direction-changing” nodes (if that’s how should it be called) instead of 2. The upper group of enemies move from left to right and the lower one move from right to left. Once an enemy/barrier disappear from screen, they respawn on the opposite side.
EXHIBIT 2 (Anode-Cathode?)
Features 2 portals, one on the left side and the other on the right side. Enemies spawned from one portal places themselves around the opposite portal and encircles it. When an enemy is killed, another one will be spawned immediately from the portal on the opposite side. The dress color of the chickens on the right side are supposed to be blue, representing the (–) side.
Your usual block invasion wave but you’re in between two columns of indestructible barriers that restricts your movement and firing area. These colums move from left to right then bounces back from right to left after the right column reached the rightmost side of the screen.
EXHIBIT 4 (Enemy Radar?)
Features a portal and a column of indestructible barriers in which one side is “attached” on that portal. The portal acts as a “pivot” in which the column rotates. Enemies are spawned one by one and places themselves randomly on the screen but not near the portal itself nor the bottom of the screen. Difficulty determines the maximum no. of enemies that can be on the screen at the same time.
EXHIBIT 5 (Portal Gun?)
This portal “fires chickens” at you periodically. The chickens spawned are grouped by three, either “focused” (forming a line) or “spread” (spread evenly). Addressing similar problem on The Chicken Flute, the next group of enemies are immediately spawned if the player killed all of the previous ones. The portal moves up and down and is fixed laterally on the right side. Difficulty determines the no. of enemies in a group that is “fired” by the portal at a time.
I won’t stop suggesting stuffs until any of my ideas gets added. I probably needed to see them in-game if they’re actually viable waves.