It's Pokémon! But green and not as buggy and harder. The ability to rebattle trainers is welcome, but doesn't fix the design flaws (you still have to grind a lot to beat Brock. For example, I chose Bulbasaur, and had to grind to level 13 until it learnt vine whip). There are countless other new features too like ransomizers, etc. but I'm enjoying it without them so far.