Well, for Eye Laser to be effective from across the map, both you and the enemy have to stand still, or else aiming is crap, which will also leave you open for attacks. It's best close range, if you're fighting in melee it's a nice special thing for Piccolo, cus you can pummel them into the ground and blast them to pieces with it.
SBC is so slow, and once you've fired it at someone, they've already moved. It should be much faster, yet attached, and it shouldn't explode, it should take off about a quarter health but it should take ages to charge.
Masenko is far too underpowered, it needs to be buffed up seriously, or replaced with that Ball attack he used against Cell.
Scatter shot should shoot little balls that float in mid-air, instead of moving, like he used against Frieza, where he shot millions of the things and surrounded Frieza, then exploded the, which was pretty cool.
Transform should double his PL, like SSJ does. I can kick ass with Piccolo, then when my opponent and I transform, he's stronger than me for some reason. I hate that, and it should be changed.