Wave: Yin and Yang
Starts appear:.>40% difficulty missions
Two type chickens (if they could change their shirt color then one type will in black, other in white) forming into a yin yang, surrounded by a layer of barriers. They could appear anywhere bounce around similar to asteroids no, really. Up to 2 yin yangs could appear in the screen and 4 extra yin yangs to replace. Safe zone in the middle is required. Screen zoom out to 125%
Harder Variant: The Balancing
Starts appear: >90% difficulty missions
The yin yangs are bigger and faster, 3 yin yangs can appear on screen and 6 extra yin yangs to replace. Safe zone in the middle is required. Screen zoom out to 150%.
Restricted enemies: slob
Idea