This is a Piranha Plant or Venus Fire Trap...BUT! it can act like any one you choose. Green, red, short-stemmed, sideways, upside-down, spitting 1 fireball, spitting 2 fireballs, you name it. (Well, okay, it doesn't include novelties like the Shower Venus or whatever it's called.) All you have to do is change the extra property bytes. You can basically get 48 different sprites out of this thing, although only 24 .cfg files are included because of the extra bit.
Oh, and I also included a disassembly of the original Piranha Plant. (Both of them are combined with the extra bit.) The graphics routine isn't really disassembled, though; I did code that part myself.
Note that the GFX come with PIXI.
GAMMA V UPDATE: Renamed the .cfg files based on the plants they represent since pva(number).cfg would not be helpful for users who don't know much about extra property bytes
RUSSIANMAN UPDATE: Now PIXI compatible
Fixed extended_y/x_speed usage. It wasn't really a bug, Pixi had these defines swapped back in 1.1.0.