Good combo's, but it's lacking a few combo's that I like to do as Megaman, such as using Dthrow then following up with a Fsmash if they're constantly airdodging your Fair.
Using crashbomb then following up with a grab to Uthrow, then using an Uair, so they have to dodge either the crashbomb or the tornado and get hit by the other one.
If you and your oppenent are roughly the same precent use crashbomb, and grab your opponent, then wait for the crash bomb to explode and you and your oppenent will both be sent into the air, where you can follow up with a Bair.
Use crashbomb and Uthrow at high precentages to kill your opponent.
A horizontal metalblade that hits your opponent can follow up into a Utilt, Usmash, or a grab.