I'm definitely not going to consider myself the best Dedede player, 'cause I'm not even close. But I'm getting into competitive Brawling, maining Dedede, and I saw a few things.
I've only watched the first two videos so far, by the way:
- You use Up B a lot more often than you need to. While it got a few lucky hits, the lag afterward is punishable, and both Sonic and Lucario made that obvious. To me, at least. [video 2 - 1:25 / 1:45]
- Not really a 'problem', but when CGing at low percents, you never followed up with an ftilt or ended with a bthrow (The latter I guess because you just wanted to get them off the ledge, but at low percents I think it's better to try and rack up damage with the stronger bthrow than another dthrow to get them off the ledge [video 2 - 1:16])
- I might be wrong, but there were plenty of times where you did manage to get Lucario off the ledge and forced him to Up B, in which case you could've gimped him and grabbed the ledge. Instead you hopped off the ledge or simply attacked. [video 2 - 2:06 / 3:42]
Try not to take too much of this into consideration, as I am very new to all of such 'terms' and what I'm saying might be completely wrong. You have a very nice Dedede, especially if he's not your main.
What I'm really trying to say is; these videos are great, and I saw what I think are some flaws. Sorry if this is spam, but I'd like to consider it a 'test' and see if I pointed some of them out correctly.