What the hell wrong with megaman zero 2?

So I got myself 3 legacy collections on steam, completed the first 2 (X-series) beside X7 and move on to Z/ZX. Then I play Z1, bulldozing through the game without using any elf upgrade, E tank and so on, asking myself why the hell they implemented a grinding system in a megaman game. The non dialogue skip is atrocious, but I digress, and continue move on because I never play a Z/ZX game in my child hood.

Then Z2, the game is so poorly design that I literally have to stop, the main reason is because of the EX skill.

Firstly, the android engineer tell you you gonna got an EX skill if you defeat a boss with good rank. Yeah the game straight up tell you this AFTER you defeat a boss.

Secondly, there no way to refight a boss for better rank.

So I stop, I could handle a hard game, not a game that don't respect my time.