That is insane! Kinda wondering where you had gone, but glad you're that happy with it

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Question, what do you mean by MetaKnight being "broken"?
He's completely unbalanced and generally considered the best character in the game by far- but in ways the developers likely overlooked. The intention was to make him a fast and fairly powerful character, but light and easy to kill, but they overpowered a few of his moves.
Try the down-smash. It comes out instantly, faster than almost any other attack in the game, does high amounts of damage and ridiculous knockback, easily capable of killing most characters. He's insanely fast and hard to land a hit on, and because his attacks have almost zero startup time and zero ending time, he can combo them in ridiculously silly ways if you get good at it. For example, run at someone, dash attack and immediately upsmash when the dashing animation ends- you land a free upsmash every time. His aerial attacks overpower almost any other attack by default, so it's hard to approach him in the air.
One of the local players, brdy, who is one of the best in the state, plays Metaknight and uses Dsmash to cover everything. He'll do crazy air combos and Dsmash the second he hits the ground so you can't punish him for the open moment (generally, the second you touch the ground can leave you vulnerable as any attack you were using in the air gets cancelled and any attack you use on the ground has a second of startup time). His up-B is also a kill move, and if you avoid it, a good player still swings around and hits you anyway. His recovery is ridiculous- four jumps, glide, up-B, and glide again!
One time I edgehogged brdy (edgehogging means I grabbed the ledge right as he used his up-B into it- during the grabbing animation I was invincible, and thus he fails to grab the ledge and falls to his death), which would have killed anyone else, and he just glides all the way under the stage, drops and pulls up and grabs the opposite ledge. This was on Smashville (the animal crossing stage).
Oh, Snake's pretty broken too. Snake and Meta are considered the two best characters- there's a tier list, divided into Low Tier characters, Mid Tier characters, High Tier characters, and Top- Snake and Meta are the top two. Both characters, in the right hand, can be so overpowered as to be ridiculous.
For those questioning Snake, you're not playing him right. Use his tilts (when you hold the analog stick in a direction and attack, rather than performing a smash attack). His forward tilt is two-hit and easily kills most people at medium %, and his up-tilt has a ridiculously large hitbox and overcomes almost anything including IIRC Toon Link's down-air.
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I can still beat most MetaKnight players, but the ones that get really good with him are REALLY hard to overcome. It's especially hard for me as my favorite approach is using Peach's hover, and Meta's up-B slams me out of it and can easily kill me.
But, man, you play a lot of hours.
Well, not usually this much

It was tournament week though.
I'll play anyone online who wants to, but I'm not online with the Wii much, so you'll want to add me on AIM and tell me when you want to play. My Peach is pretty terrible over WiFi though, as I rely on precision timing so much with the hover and it gets really laggy when I play with anyone not on the west coast.