As for Trooper: Your grabs (especially from charging) look really nice, like the ones where you catch from air. Thats a great tactic. You should definately work on your spacing and DI (directional influence) as it seems like your Link buddy in the first video was really capitalizing on it. It looks like you've got alot of mechanics down, but you should definately learn "advanced techniques" (wavedashing, SHFFLing, etc.) as they're important... especially for our main man doc and his awful range. it seems like you should also work on your Forward-air.. its such an awesome part of Dr. Mario and you dont use it as heavily as perhaps you should. Also, you double-jump alot and spend alot of time hanging in air. Though Dr. Mario has got some nice air moves, I personally still feel really vulnerable (especially with link) when i hang in the air too long. You might wanna shorthop more or try to not let yourself hang so close, inviting an attack.
Overall i think you did a pretty darn good job. For amateur skill level i'd definately give you an 8 or so.
