Splatoon - one of Nintendo's most recent hits - is arguably another prime candidate for mobile phones, as it boasts a unique look and has been popular with younger players. Nintendo isn't quite ready to release the series on smartphones, but that doesn't mean you can play it right now - or at least a clone of it.
As you can see above, this Chinese-made mobile title is a pretty close copy of the Wii U original, replicating the core visuals to quite an impressive degree. The music is lifted wholesale from the original game, and sadly there's no motion control.
This kind of cloning is pretty commonplace on smartphones, and it remains to be seen if Nintendo takes action - or is even capable of getting this shut down, given that it originates from China.