List of PSI (EarthBound)

In EarthBound, PSI is the equivalent of magic spells in the general RPG genre. There are three playable characters that are capable of using PSI in the game: Ness, Paula and Poo. Each character has their own PSI moves, but also share some of the same moves as well. Certain enemies in EarthBound are also capable of using different PSI moves. There are four different types of PSI moves in EarthBound: Offense, Recovery, Assist, and Other. Throughout the game, Ness, Paula and Poo learn different PSI moves either during level ups or story events. 
Down below are all the PSI abilities available in EarthBound, and the characters capable of using them, as well as the level/story event required to learn them.
Offense PSI
PSI 	Ness 	Paula 	Poo 	PP	Effect
PSI Rockin α 	Lv. 8 	-- 	-- 	10	40-120 damage to all enemies.
PSI Rockin β 	Lv, 22	-- 	-- 	14	90-270 damage to all enemies.
PSI Rockin γ 	Lv. 49	-- 	-- 	40	160-480 damage to all enemies.
PSI Rockin Ω 	Lv. 75	-- 	-- 	98	320-960 damage to all enemies.
PSI Flash α 	Lv. 18	-- 	-- 	8 	Attacks all enemies, inflicting either crying (85%) or strangeness (15%).
PSI Flash β 	Lv. 38	-- 	-- 	19	Attacks all enemies, inflicting either crying (60%), strangeness (10%), paralysis (10%) or instant death (15%).
PSI Flash γ 	Lv. 61	-- 	-- 	24	Attacks all enemies, inflicting either crying (45%), strangeness (15%), paralysis (20%) or instant death (20%).
PSI Flash Ω 	Lv. 68	-- 	-- 	32	Attacks all enemies, inflicting either crying (35%), strangeness (10%), paralysis (15%) or instant death (40%).
PSI Fire α 	-- 	Lv. 3 	-- 	6 	60-100 damage to one row of enemies
PSI Fire β 	-- 	Lv. 19	-- 	12	120-200 damage to one row of enemies
PSI Fire γ 	-- 	Lv. 37	-- 	20	180-300 damage to one row of enemies
PSI Fire Ω 	-- 	Lv. 64	-- 	42	240-400 damage to one row of enemies
PSI Freeze α 	-- 	Lv. 1 	Lv. 15 	4 	135-255 damage to one enemy
PSI Freeze β 	-- 	Lv. 11	Lv. 15 	9 	270-450 damage to one enemy
PSI Freeze γ 	-- 	Lv. 31	Lv. 33 	18	405-675 damage to one enemy
PSI Freeze Ω 	-- 	Lv. 46	-- 	28	540-900 damage to one enemy
PSI Thunder α 	-- 	Lv. 8 	Lv. 15 	3 	60-180 damage to a random enemy
PSI Thunder β 	-- 	Lv. 25	Lv. 15 	7 	60-180 damage to a random enemy (2x)
PSI Thunder γ 	-- 	Lv. 57	Lv. 41 	16	100-300 damage to a random enemy (3x)
PSI Thunder Ω 	-- 	-- 	Lv. 55 	20	100-300 damage to a random enemy (4x)
PSI Starstorm α	-- 	-- 	Learned after defeating Master Barf. 	24	270-450 damage to all enemies.
PSI Starstorm Ω	-- 	-- 	Learned after entering the Phase Distorter II to travel to the Cave of the Past.	42	540-900 damage to all enemies.