Emotional Spectrum Practice, or ESP for short, is an exercise activity formulated by Tulip to help one become more beautiful. ESP regimens are taught by Dendra at the eastern side of town at the base of the observatory. The player must participate in two ESP sessions, featuring 10 and 15 rounds respectively under standard mode rules, as part of the Alfornada Gym Test. In subsequent visits, Dendra will continue to offer ESP sessions, in two different modes: Standard and Knockout.
During an ESP session, Dendra will prompt the player to press either the X, A, B, or Y button before a short timer expires. Each button corresponds to a color-coded emotion that the player must mimic, and it is possible for the same emotion to be chosen multiple times in a row. If the correct emotion is given, the timer will pause briefly, and the current round will be marked as a success even if the player later switches to a different emotion. No penalty is given for expressing the wrong emotion, and the timer will keep running while still allowing the player to switch to the correct emotion. It is possible to input the correct emotion multiple times in the same round, but this does not provide any additional points.
Standard mode offers four different courses of increasing difficulty (more rounds and a shorter timer per round): Nice 'n' easy, Moderate, Vigorous, and All-out. This mode will end in failure if at any point the player has accumulated seven more unsuccessful rounds than they have successful rounds, and no reward will be given in this case. If the player reaches the end of the session without having too many unsuccessful rounds, they will receive various Berries as a reward.
In Knockout mode, a single unsuccessful round at any time will end the session. Dendra will continue for a maximum of 151 prompts, divided into phases of increasing speed. After each phase, there is an opportunity to rest, in which the game will not proceed to the next phase until the player presses any button.
3 copies of a random one of the six Berry types above
5 copies each of two random Berry types from above
10 copies each of two random Berry types from above
Completing all 151 rounds causes the player to be rewarded with "an assortment of Berries"; this consists of 10 copies of each of the six Berry types that can be given as consolation prizes, plus one Starf Berry.