Smbx is a fangame made by Redigit, the creator of Terraria. This game was made long before Super Mario Maker was even announced and it is, I believe, much better. Fellow member @Darkonius_Mavakar is a popular player and creator within the Smbx community.
Reasons I think Smbx is better than Mario Maker:
-You can add music from .mp3 files.
-You can add custom and downloaded graphics.
-Mario Maker has a maximum of 2 sections in a level. Smbx has 21.
-Every color of yoshi. Some even have special abilities! (Pink spits out Smb2 vegetables and Light Blue spits out frozen enemies.
-More power-ups.
-Much more!
Oh it is. I forgot to mention that players can create entire GAMES with Smbx. If anyone downloads it, I recommend Super Mario Star Expedition and Super Mario Legends Part 1 if Nintendo hasn’t shut this game’s download down.
I think Megaman is in Smbx 2.0 and you could possibly reskin him, but I’m not sure because I don’t have that version.
Oh man the good ol days of using this. I was making a game called “Mushroom Kingdom Catastrophe” on this and finished 1 and a half worlds but my computer broke.