In the past few years, we have covered plenty of cool robotic bees here. This one WSU researchers can fly in all directions as it can twist. Bee++ has 4 wings made of carbon fiber and mylar. It can achieve 6 degrees of movement. The below video shows it in action:
This robot weighs 95mg and has a 33mm wingspan. It can fly autonomously for about 5 minutes at a time.
[HT] [Credit: Ryan M. Bena; Xiufeng Yang; Ariel A. Calderón; Néstor O. Pérez-Arancibia ]