I’ve been stumped trying to animate Samus’s run animation as there are barely any sprite sheets online for the original NES version of Metroid, mainly just Super and Zero Misssion. Here’s a link to the game. It’s strictly 2 player but it doesn’t really matter as the fighting hasn’t been incorperated yet.
Game Link: https://arcade.makecode.com/S14610-91998-64656-97060
This is cool! The current sprites and animations look good, If you want I could help make some tilemaps. I’m not really sure about the “In Partnership with Nintendo” thing though. I get you wanna make it realistic but that’s… it just throughs me off a little bit. Anyway the game is pretty good so far, happy to help with what I can! 
samus sprite sheet.
Also, mario’s animations are mixed with link’s. Also always do an idle animation, so when the player stops moving, it doesn’t seem they freeze mid-walk.
This was really helpful. Thank you.
One more thing, the tilemaps I could probably handle myself, but I am NOT good with music. Danny_Devention, could you possibly remix some songs for the stages?
Sure, I could remix songs.
(sorry it took so long to reply, tip, if you wanna reply to someone use the @ symbol before their user name, then they get notified. 
)
I just need to know what songs you want me to remix, then I’ll be good to go.