We've just added a whole bunch of new bullet types. This includes fireballs, rockets, laser beams, energy waves, and a variety of standard orb-like bullets.
Here's some gifs:Rockets Lasers Energy Waves Burst Fire
The bullets are also now coloured differently depending on where they came from. Alien bullets are orange, red, and pink. Bullets fired by player-spawned drones or player bosses are green and blue.Drones and Aliens Boss and Alien