Being good at dating - Protagonist (Doki Doki Literature Club), Matarou (Mikoto Nikki), protagonist (Date almost Anything Sim), protagonist (Date Treat), protagonist (Love or Die), Kira (Paper Roses), Romance Cop & Romance Detective (Romance Detective), Mika (Seduce Me the Otome), plus various other characters.
The ability to clear tetriminos - anyone from Puyo Puyo Tetris.
The ability to pop puyos - anyone from Puyo Puyo Tetris.