Well i have found that squirt's WG is used for items. just have some crates around and he'll blast it and deal the damage of it sliding into your enemy, not worth if your playing hardcore matches but how i now am using it is just simple
you just hit the guy with your aerial attacks. next make sure he doens't get back on and he uses his 2nd jump (if they have more than one jump keep knocking them till they have no more left. Then make sure you have the WG fully charged and spray them either before or after they do their recovery move. I found this most succsesfull against Diddy. The Relability of this depends on the person you are facing, however i just though of this and it is or might just be a start. I still am going to look more into it.
you just hit the guy with your aerial attacks. next make sure he doens't get back on and he uses his 2nd jump (if they have more than one jump keep knocking them till they have no more left. Then make sure you have the WG fully charged and spray them either before or after they do their recovery move. I found this most succsesfull against Diddy. The Relability of this depends on the person you are facing, however i just though of this and it is or might just be a start. I still am going to look more into it.