>>53724367It's perfectly fine
when it doesn't run like shit.It's basically a Fire Red fangame with some extra content as well as Jhoto thrown in the postgame.
The fusion mechanic is the biggest draw as it helps expand movepools, give new typings, and could potentially patch up holes in some mons' stats.
Just make sure you have a decent PC to run it cuz it really struggles to contain what's essentially 176k different mons with how man fusion combos are possible.