P1 (Undyne) Controls: Green Soul mode: Q/W/E/R for right, left, bottom, and top spears. 1/2/3/4 for spear speeds for the respective sides (R/L/B/T). Three speeds; slow, normal, and fast. A/S/D/F for backwards spears. These aren't effected by 1/2/3/4. Y to make the green soul red. Red Soul mode: T to make three spears at your mouse that aim at the soul G to make six spears around the soul B to generate a single spear randomly. V to have spears come out of the ground. Y to make the red soul green. P2 (Soul) Controls: Arrow keys to move the spear in green mode, and to move the soul in red mode. N to heal twenty health. M to attack while on the fight button.
im not sure