1st vid vs dat ike.
I notice you spotdodge when you don't need to sometimes...( atleast at the beggining of the vid a couple times) try to watch out that can turn into a nasty habit and you're opponents will begin to eat you alive if you continue.
spring owns ike's recovery, it can stop his side B and up B and the trajectory usueally either sends him away or into the stage for a stage spike. its a good edgeguarding tool in this MU.
careful with airdodges coming down on ike... or coming down on ike in general lol. try to avoid situations where ur dlb jump is gone and ike can get under you.
i would advise against spindashing toward ike without a double jump to cancel the spindash, it seems he caught on and killed you.
idk how the heck you got through his uair with dair at 2:24 lol
at high percents you can get a few pummels in even on the most dexterous of strugglers. look at there controller to see if they struggle out of grabs lol.
2nd vid vs ddd
I'm actually not that great at this MU but i'll try and help anyways.
fair is one of you're best options vs ddd i think...
don't dash grab if they are in standing grab range =_=
dthrow against walls can setup for a jab lock, there are several times you can do this on delphino and the jablock can even lead to there death when the platform flies away without them. when DDD does up B, on his way down you can hit him without trading if you're really careful. also the beggining of you're up b has invincibily.... hmmmmm
DDDs utilt is really dumb =.= try to imagine its range and just stay out of it unless you can bait it or something. it has invincibility frames so you can't beat it with any of you're moves
ddd can litterally shield grab pretty much any move
what was the fsmash at 3:37 for?
thats all i got, nice sonic.