I haven't touched a single metroid game, heck I didn't even know the franchise existed until I played Smash, but then again Ridley's a cool character, so i'm down.
a lot of nintendo games i know about are becuse of smash, whether it be from videos i watched about smash or my own research because of interest of the character
My entire history of gaming knowledge came from Angry Birds. It started when I was playing AB Epic then the crossover event with Sonic the hedgehog happened, then I found smash bros through Sonic the hedgehog.
I learned Star fox Metroid animal crossing donkey kong war ware fire emblem banjo and Kazooie persona dragon quest F-zero earthbound and Bayonetta and street filter and final fantasy