Puyo Puyo was initial released in 1991 by the developers Compile; SEGA's (and/or) Sonic Team's Dr. Robotnik's Mean Bean Machine was initial released in 1993.

Mean Bean Machine is SEGA's localization of the original Puyo Puyo.

Did you mean: Doctor Robotnik's Mean Bean Machine?

Right, that's the intentional block hit delay kicking in so that the chain detection can activate and stop any collection of blocks so that the full chain animation can play out without any other blocks entering the board.

It should be possible to remove the delay, at the expense of the chain animation happening extremely quickly at roughly one second. Also, I still have a bug where releasing collected blocks quickly bypasses the delay.

This is the smartest idea ever, but the hit detection feels a bit off compared to normal gameplay.