Snooker tables much bigger
Pockets smaller
Balls must be potted in a particular sequence (red, colour, then colours potted in order of value)
Red balls are worth one point and each colour from 2-7 with the black being the highest. You score points by potting red/colour/red/colour until you have more points than you can still score on the table (red balls stay in pockets) or until you clear the table
The skill involved is insane when it comes to cueball positioning, safety etc.
Pool for the mind is a good way of putting it.
This is a maximum break of 147 points basically the perfect frame of snooker:
http://www.youtube.com/watch?v=bpeBugHSCnU