I've never played Pong while on an LSD trip, although if I did I'm sure it would be very much like Plasma Pong. The game takes the old classic and puts it into a psychodelic liquid enviroment, adding the colour and graphics that the original so desperately lacked.
Plasma Pong plays very much like the version we know and love, only this time the ball is replaced by a wad of goo.
You'll need plenty of practice too, because things get even trickier as you progress through the levels. To help you though, it's possible to right-click on the paddle to hold the blob until you pick the right point to fire it.