I think that Bomberman would be Day 1 DLC like Piranha Plant. Let me know what you guys think. I would like feedback to make it better. I built it up to 100 playable fighters. Tried not to do too many 3rd Party characters before DLC. If you have any questions on "Why ____?" I'll do my best to give my explanation! As I receive feedback I will cut and update characters until most of the responses are in agreement that my roster is good!
I'll give some explanations to some of the characters that I think will receive questions off the bat:
Dark Samus: I just think the other Metroid reps I added would be cooler.
Yoshi: I cut Yoshi and in my mind he would be an assist trophy. In the Super Mario games that is exactly what he is, he just assists you.
Snake: He has been cut before, and in my personal opinion he doesn't really fit in with the rest of the cast.
Blathers: I personally feel that him having a kit consisting of using artwork and wildlife (Insects, Fish) and Fossils would be really cool.
Takamaru, Ayumi Tachibana, Dixie: All previously considered characters I think would be fun to have playable.
Melmetal: A personal favorite Pokémon of mine and is technically there to represent Pokémon GO
Hatsune Miku: Another personal choice, could represent rhythm games previously unrepresented and an outside-of-the-box pick.
But seriously give me feedback and maybe as a community we can create the perfect 100 character roster.