Honestly, it's basically impossible to top Wario Land's reward for a tenth of that minus one. But seriously now, real talk: an alternative title screen featuring a golden statue? What? And all the recycled assets/themes twice over now as well, soon to be thrice over. Doesn't seem like a good sign after 3D Land.
Ah, but it isn't the reward thats the best. It's the JORNEY.
New Super Mario Bros. 2: SixOne MILLION Coins!
SO MUCH COINS.