New Super Mario Bros. 2

[NICKtendo DS]

It looks like you'll be able to get 99 lives in this game real quickly.

This doesn't have to be true. You still have to collect 100 coins to get an extra life, while in NSMB1 you could grab a Mega Mushroom (not even a back-up) in the first level and race to the flag and get 5 1-up Mushrooms as destruction bonus.
It depends on how rare and hard-to-get the 1-up Mushrooms are here.