PVZ2 is filled with greedy microtransactions, and it costs an insane amount of money to get all of the extras. Some of which are plants from the first game that are now locked behind a paywall. But under the surface, the game itself is actually good. It really expands the pvz formula and sets up for more interesting setups in different worlds, and in different level conditions. It makes for more variety of gameplay, and can be a good challenge sometimes. It's worth playing if you enjoy PVZ