What's Z-Dropping and how's it done? Specfically for the metal blades.
Z-dropping is kind of a misnomer now and only applies if you're using a GameCube controller.
If you press the grab button in midair with an item in hand, you'll throw it in the direction you're holding the control stick. If your control stick is at neutral, however, you'll simply drop the item and it will do damage as if you threw it. This is "z-dropping."
Z-dropping is a frame 1 action, so as Mega Man it is actually the quickest attack you have available.
I've been playing with Megaman sparingly since the 3DS demo and still cannot find myself comfortable with it. His traits are clear but his style is very unrewarding and too demanding compared with the rest of the cast. I find myself easily overwhelmed by random players in close quarters. I guess I need some pointers here.
I use the pellets as in a classic Megaman game, short jumping backwards or forwards to create distance. If they shield inside range, sometimes I go for a grab. But I cannot rely forever on the pellets as the main thing as the damage and knockback at maximum range is negligible, it's more of a tool to force approaches.
I use the metal blades with short hops and go for grabs when they are stunned. I rarely catch the blades since I can't afford losing the attacks. I also shoot a crash bomb when I get the chance by dashing and then shooting the other way around to keep momentum.
I only use leaf shield against fast characters that like to grab or against campers.
The rest of attacks are very intuitive to me. Up smash for quick damage by punishing rolls or airdodges, ocassional fsmash for landings, uair for cheap vertical damage, fair and bair for comboing, spacing and gimping, dtilt for quick escapes and maybe combos, etc.
I really like the character, but sometimes I feel like dropping him.
IMHO Mega Man's bread and butter damage moves are his (item) metal blades and his throws. His Metal Blade has all kinds of interesting techs, and once you master them it can be easy to quickly get one in your hand and pressure with it. Mega Man alsohas an excellent grab game, as his grab has surprisingly large range and is quite quick and tough to punish. Both his pummel and his throws do great damage. Bthrow and Uthrow kill at high percents.
My play style involves using pellets, metal blades, crash bombs, and leaf shields to do low/passive damage while weaving in and out, using all these options to change up my approach and make it unpredictable. I sometimes throw a MB to the ground and instathrow it for a quick 10%, or grab it so I can pressure with z-drop. When I get in close, I either grab, pummel and throw to lay in some real dsmage and reset to neutral, or I nair/fair to press my advantage. At mid-to-high percents I go for bair and utilt to kill.
I use his smashes mostly for reads and punishes. Fsmash is good for punishing people who commit to a double jump (if they don't have a reflector), usmash catches spot dodges and power shields, running usmash is a good punish for moves with long end lag, and dsmash catches people who try to roll toward you.