defeat a boss in 10 seconds or less and other achievements dont work!! i tried several times

i played this about a month ago on steam deck and it was fine. All of a sudden the game would not launch at all immediately crashes. i tried uninstalling. i tried rebooting. i even forced it to play with proton. nothing worked. please help.

Hi just bought Ninja senki, but when I start it I just hear the music and a black screen with some random big pixels. The buttons seem to work but No graphics whatsovever. I use a core i5, 4GB ram Win8 Intel HD graphics and 4:3 monitor thx

Hey, just starting to play this game - Excited to get into it. There's a ghost at the beginning, if I get hit by my controller stops working... Anyone else experiencing this issue?

I download this game for my Steam deck and seem like it doesn't bring my steam cloud save. By the way, this game work fully great for my Steam deck.