Ah... 8-BIT GRAPHICS and CHIPTUNE soundtrack...
My childhood memories are back!
Megaman, Castlevania, Ninja Gaiden, Super Mario, Chip n Dale

I got it for 3DS... The 3D effect is quite nicely done [parallax scrolling] and there is also Feats [achievements].. Anybody got the Wii U version - how is it?

I also hear there will be more free DLCs like female character, new modes, levels etc... $15 is reasonable for a new downloadable title IMO.