Super Squishy Square Stacker

Inspired by the likes of Not Tetris and C4D4U's "Satisfying Softbody Tetris" animations; this game sees you controlling jelly-like tetrominos, arranging them in such a way that clears rows, and draining the remaining residue with the two vents at the bottom of the field. Play ends once you've collected enough jelly to fill a container of variable size, depending on which mode you've picked. The available containers hold a pint (~17 lines), a quart (~33 lines), and a gallon(~