[collapse="Game 1: Yoshi's Story"]0:05 - You should have daired into that utilt instead of bairing.
0:10 - When you dair people before knockdown percents, especially when they are airborne, you have to pay attention to their SDI and your drift. If they aren't within range of shine, you should utilt or in situations where they have little to no lag, grab.
0:23 - That dsmash wouldn't have killed, especially from the top plat. You should have utilted and followed up with a dair to keep the combo going.
0:27 - If you grab the ledge a bit sooner there you could have baired him.
0:40 - You give up stage control for no reason.
0:48 - A better Marth will not simply stand under the plat and utilt randomly. Most Marths and other characters in general will DD grab bad drop through attacks like that.
0:50 - When you steal the ledge from Marth's DJ like that, LHing just lets him grab it which was exactly what he wanted. Know how much invul you have, and if you have enough, just wait for him to dip below the ledge so he can no longer grab it before getting off. You can ledgestand or even ledge attack (useful if they are higher up or airdodging). If he side-Bs (most Marths will), he can't grab the ledge until the move ends so you are able to shine bair at that point.
0:58 - Another bad FF aerial from up high.
1:07 - He could have shield grabbed that laser. You can't laser that close, but especially can't dash in after he shields it.
1:10 - Fthrowing him onto the ledge is fairly useless. Uthrow usually gives you a solid followup at that %.
1:12 - Starting from the DA, this combo was really good. It's hard to tell 'cause of YouTube, but I think you stole his jump with that utilt, so I probably would have opted for a bair at the peak because then you can just FH bair him one more time as he drifts back to the stage. It's a judgement call, so the dair was fine really (and the right decision if he still had his jump). As soon as you realize he's teching on the side plat, you have to be prepared for the 3 options. You need 3 preplanned punishes depending on if they TIP/missed tech, techroll left, or techroll right. Dsmash is good for TIP/missed tech because it's quick, but you usually get better KB with fsmash so the extra lag on techrolls should mean that's your goto option. When they techroll towards the center, fsmash still might not be strong enough to KO/set up an edgeguard, so in those scenarios you should utilt/dair to keep the combo going or you can do some slightly jankier stuff like grab -> bthrow towards ledge and possibly followup with a dair. Regardless of what you do, simply dsmashing all of their options just because it's easier is a really bad habit because it won't cut it at higher levels.
1:18 - Another bad FF aerial from up high.
1:20 - I like to shine bair when I drop down like that because sometimes the shine will catch them when the rising bair will just rarely miss. You don't really have anything to lose by adding that in there. The dair wasn't really the best idea in the first place because even if he gets hit, he could very likely get sent into the stage for a tech.
1:40 - Another bad FF aerial from up high.
1:43 - You're really lucky that poked because otherwise it was a super early aerial and you would've been shield grabbed. The runoff was also really risky because if the Marth DJ fairs you, it could be your stock. A safer option would be to run to the edge and CC. If he spaces himself poorly like the Marth you were playing does, you can just dsmash him, and if he tries to fair you and misspaces it, you can CC dsmash it. If he spaces a fair perfectly or sweetspots the ledge (most good Marths will do this) at least you aren't off stage and can retreat back to the center to maintain stage control.
1:50 - You tried to roll in which isn't an awful idea when you're trapped at the ledge like that, but most people will just grab it on reaction, especially a Marth who just dtilted your shield (they are looking for those kneejerk reactions). FH OoS tends to feel safer for me. Worst case scenario he tipper fairs you and you go straight up, and that option is pretty risky for Marth because if he is wrong about the jump he's just fairing your shield and you can WD onto the ledge, attack OoS, etc. No matter what you do, be ready to DI. That dtilt sent you off at way too low of an angle and restricted you to a single side-B height vs. up-B mixup. If you can get even slightly above the ledge with your DJ, they have to worry about high side-Bs they can't dtilt or even jab, and you also open up the ability to up-B with the traditional 3 angles (ledge, at the opponent, and high, though this isn't very good vs. Marth specifically).
2:08 - Marth is only at 23%, so bair is a pretty useless move. He just ASDIed down and slid off. Your goal in this situation should be to get a combo going. The textbook option is shine WL, and for a more obscure mixup, you can FH dair (I prefer this at %s where dair -> dair is a threat, but it really isn't until mid %s).
2:23 - Well that's convenient. You did the dair I described from the last situation, and it was the perfect decision, you just did it a little early. You can optimize your execution a little by doing a SH instant DJ dair because it allows you to land a tad sooner. That will help if he had techrolled right, for example. After the combo gets dropped, you just give up stage control again. Even though he's not in stun, you still have him pinned at the ledge, and he even does a bad utilt you could have reacted to and punished.
2:30 - A slew of bad habits are on display here. You DA (which was a bad idea in the first place because Marth is so fast he can always outrun it), and then you spot dodge. Immediately following this, you whiff a shield grab and do another spot dodge. It can be a hard habit to break, and sometimes you should be dodging, but try to default to movement after situations like those.
2:35 - The platform situation discussed earlier comes up again. You just dsmash again instead of reacting with a utilt/shine.[/collapse]
I'll do L33thal next 'cause I think everyone else got a critique from someone else already.