INK has a similar feel to hardcore platformers like Super Meat Boy. The object of each level is to defeat all of the enemies in the room (if any) and reach the goal. However, the terrain is invisible to the player. The player can discover terrain by physically bumping into it, or by performing a double jump. The double jump sprays paint bullets out of the player and increases the player's awareness of their surroundings. If the player happens to bump into spikes or falls to their death, paint will also shoot out from the player's last position. The room isn't wiped clean after death so that the player has an easier time navigating after multiple attempts!