You know, after doing a bit of research, Nintendo seems to treat Shantae awfully similarly to Shovel Knight, especially on the 3DS. For example, Shantae was actually featured on the Splash Screen of the Indie section of the 3DS Eshop earlier this year, and both franchises are tied at 3 premium 3DS themes each. The only advantage I see Shovel Knight having is an amiibo.
On another note, can anyone actually find the statistics regarding sales for the games? I find it odd how Shantae is considered a best seller on the 3DS, yet barely sold 100,000 copies. Is there a possible reason for this? The Shantae fanbase seems to be pretty bustling for a number like that. We're also the 2nd most popular newcomer thread currently on Smashboards, with the 2nd most replies and views.