It could really use some feedback showing where a row was completed and especially if there was some larger connection made with the extra outlets on the side.
Viewing post in Pipe Tetris jam comments
In another comment someone said animations would help, and this was a cut feature due to not risking a refactor 1 day before deadline. The plan was "freezing" the game and animate the spread of the "charges" through the connections until they meet, and remove the affected pieces in a flashy way.
I spent the time on creating a menu and a tutorial instead :P