>Here it comes!
I think the gargling sound when you do a 16 hit chain in the original puyo was originally a glitch but they decided to keep it that way in the newer games. It's really satisfying for some reason, sounds like the game is having a seizure.
this youtube channel is amazing
The early games had different mechanics that favored whoever got a combo first. Beyond that, you just gotta git gud. Try using the practice exercises. They'll help you identify chain setups better.