After Gobi joins your party for awhile, and the story moves along, he'll be obtain an item called the 'sphere', which allows him to transform into a big fish. Unlike his regular form, this form is bigger, and can actually 'swim'. You will have no enemy encounters while Gobi is in this state, and can travel over chasms in the ocean floor. This is the best means of transportation through the underwater world, since the spell 'Warp', does NOT work while underwater. To use this ability, simply place Gobi in the front of the party while in the underwater world map, and press the 'talk button'. Gobi will instantly transform into a fish, allowing you to travel freely underwater. To change back, simply press the 'talk button' again. This ability may prove invaluable at certain times.

In Tunlan or Prima, you can find an empty shop in one of the shop buildings. If you place Gobi in the lead, you can set up a shop by going behind the counter, in between the two torches, and pressing the 'talk button'. Gobi will automatically set up shop and a customer will come along, either offering to buy one of your items in your inventory (excluding vital), or sell what they have on them. Usually, you'll be offered a common item which can be bought, but that price will be a bit lower than usual. Once in awhile, an item will be offered to you which can't be found at that point in the game, or anywhere else at all! If you wait patiently enough, you'll get your payoff. It is recommended NEVER to sell any of YOUR goods, since the price they'll give you is lower than what you can get from selling it at a shop. New items will be offered after certain events in the game. As well as having the choice of recieving new goods at these times, some past items will no longer be offered- so beware before you pass through that event in the game. Below is a list of the items that can be offered to you, how much they cost, and at what time period they are offered at certain points in the game. They also have their own rating of recommendation. Ratings highlighted in gold mean the corresponding item cannot be found elsewhere. Be aware that the noteworthy items in the list are harder to come by.

Gobi's Shop
Product	Primary Offer	Secondary Offer	Final Offer	Rating	Comments
First Time Being Able to Control Gobi
AngleAR	18000GP	????	????	****	A very powerful/useful armor for Nina/Bleu
AntdtX9	80GP	73GP/60GP	60GP	*	The price of this is cheap compared to elsewhere
Cure2	1950GP	1787GP	????	***	Good to use in boss battles
F. Stn	12GP	11GP/9GP	9GP/7GP	**	The price of this item is cheap compared elsewhere
HuntGL	2700GP	????	????	***	A shield for Bo
LightRP	48GP	44GP	????	**	A weapon not found anywhere earlier in the game, but has weak attack
MetalAR	5400GP	4950GP	4500GP	***	Give this to Ox
ProtnB	180GP	165GP	150GP	**	Hard to come by elsewhere
Rod2	1200GP	1100GP	1000GP	***	The price of this item is cheap compared elsewhere
SilverDR	6000GP	????	????	***	Low attack, but good vs. the undead
Smoke	60GP	????	????	**	You don't normally find this item lying around
SteelBW	2400GP	????	????	***	An ok weapon for Bo; the PoisonBW is better
ThundrRP	5400GP	????	????	***	Useful when using it as a combat item
After Bleu Joins You
AgileHT	3300GP	????	????	***	An item you usually find later in the game
AngleAR	18000GP	????	????	****	A very powerful/useful armor for Nina/Bleu
AntdX9	80GP	73GP/60GP	60GP	*	The price of this is cheap compared to elsewhere
B. Stn	12GP	????	????	**	The price of this item is cheap compared elsewhere
Cure2	1950GP	1787GP	????	***	Good to use in boss battles
F. Stn	12GP	11GP/9GP	9GP/7GP	**	The price of this item is cheap compared elsewhere
G. Tiara	12000GP	????	????	**	The price of this item is cheap compared elsewhere
Mackrl	60GP	????	????	*	Same effect as antdt
ProtnB	180GP	165GP	150GP	**	Hard to come by elsewhere
Smoke	60GP	????	????	**	You don't normally find this item lying around
Sleeper	2400GP	????	????	*****	Gobi's best weapon!
After Entering Scande
AntdtX9	80GP	73GP/60GP	67GP/60GP/ 53GP/46GP	*	The price of this is cheap compared to elsewhere
B. Stn	12GP	11GP/9GP	10GP/9GP/8GP	**	The price of this item is cheap compared to elsewhere
CureX9****	2700GP	2475GP/2025GP	2250GP/2025GP/ 1800GP/1575GP	***	****- This really is LifeX9; it is mistyped
EvilRB	5994GP	5494GP	3996GP	****	A powerful robe for Bleu/Nina!
GlowCN	36000GP	????	????	*****	The strongest weapon for Bleu!
G. Tiara	12000GP	11000GP/9000GP	8000GP	**	The price of this item is cheap compared to elsewhere
Mallet	18000GP	16500GP/13500GP	????	*****	The best weapon for Ox!
MaskSH	12000GP	????	????	*****	One of the strongest shields for all characters!
PowerRP	18000GP	????	????	*****	The best weapon for Nina!
ProtnB	180GP	165GP/135GP	150GP/120GP/105GP	**	Hard to come by elsewhere
Smoke	60GP	55GP/45GP	50GP/35GP	**	You don't normally find this item lying around
Tuna	1200GP	1100GP/900GP	1000GP/900GP/700GP	****	A healing item which recovers Status and full HP to one ally

If one thing is certain, it is this: Gobi's spells are usually stronger than his physical attack. They also hit ALL the enemies in battle. He also learns his most powerful ones after leveling up once or twice. Here's the catch: They only work in underwater battles. Most of the game's battles take place ABOVE water, making Gobi's spells' usefulness shortlived. Always remember, however, that when you're underwater and are trying to find a spell that's actually useful, bring out Gobi and let him do his casting. Overall, Gobi without spells makes him a fish out of water. Listed below is all the information you'll need about Gobi's four spells.

Name	AP Cost	Type/Element	Level	Description
Ebb	3AP	Physical	15	Small Fish Attack vs. Enemies
EbbX	5AP	Physical	15	Small Fish Attack vs. Enemies
Eco	8AP	Physical	16	Medium Fish Attack vs. Enemies
EcoX	10AP	Physical	17	Large Fish Attack vs. Enemies