Martian Drone

The Martian Drone is a flying enemy that spawns during the Martian Madness event. Upon spawning, it flies diagonally up from a bottom corner of the screen, moving through blocks. If not destroyed, it stops once it reaches a point just above the player, then spins and explodes into spark particles that fall and linger on the ground, which damage players or NPCs that touch them.

Bug

 * If player is inside tunnel floating over ground(like tunnel in floating island) will cause the drone spawns, go threw the upper side of blocks over tunnel and stuck inside, only moving horizonally over player's head.