Brilliant, The idea to represent simple billiard/pachinko balls as spiders is a stroke of genius that elevates a simple pool variant to a memorable arcade title. 

Ironically enjoyable whether people love or hate spiders :)

The concept of holo-overlays brings to mind the scene in Psychopass Season 2, how a hacker releases a new update to a "3d Angry Birds" clone. Only he hacked a depot making attack droids and overlaid their optics to elements in the game. So the people playing the game were unknowingly piloting attack droids and killing people. Simply by disguising missiles as eggs and humans as "Evil witches".

Imagine that case going to court and trying to sentence the players for "Technically killing dozens" despite "ignorance being no excuse" and them actively trying to kill the targets in game. Especially after the cops shut down the overlay, effectively removing the evidence.

Great game!