1 - whenever any entity whatsoever is in the tractor beam and is close to the head, it should open its mouth so it would actually look like it's swallowing props/creatures

2 - heads should be killable, with a well-placed shot to the eye. once shot, their eye would go dark, the head would go limp, and flail around like a ragdoll as the storm flies (but still attached to it)

3 - phases have already been suggested, but ill leave it here too for the masterthread

4 - unarmed NPCs should be made to run from it instead of trying to fight it/approach

5 - NPCs that use vanilla hl2 animation sets should play fitting animations when caught in a tractor beam (cowering, flailing around, etc. the metropolice have a burn animation, combine soldiers do too, and citizens/rebels could just cower)

6 - if it takes enough damage, it should fall to the ground and expose a ribcage with the command block (where you could then walk up and try to destroy it. 50% chance it gets back up again)

7 - tentacles should grab NPCs and players and pull them into one of the heads' mouths.

8 - tentacles should gravitate towards physics objects (and especially groups of physics objects), and swipe at them when in range (flinging everything)

9 - tentacles should have collisions with the world and props. if need be, they should be able to bend and curve to worm their way into crevices

10 - killing a head should have a 35% chance to make one of the other heads scream/roar and begin actively seeking out & targeting the person who killed it

11 - there should be a toggle that adds sprites of blocks or trash being sucked up by the tractor beams, while acting as a passive way to make it grow if you cant handle placing a lot of physics objects

12 - tentacles should be able to be killed. when killed, they'd squirm/flail around before ripping off off the storm and limply falling to the ground


advanced stuff

if phases DO infact get added, you should add an interior to the largest phase possible that has the inside stomach and the command block. if you get eaten by the storm in its largest phase there should be a 20% chance or so that you'd appear in the chamber. to compensate for movement issues you could make it stop moving around for the duration you're in there
as you slowly tread towards the command block with reduced movement speed, you should have to kill a few small tentacles and a head. if you successfully manage to destroy the command block, then the storm will die. for the death sequence, idk, just make it implode into 3 different smaller corpses