Hello! thanks for reporting these bugs! 2.2.0 was a the first release and a day after it's release i uploaded a patch (2.2.1) fixing most of the saving issues with hard mode and story mode (most of these being those softlocks you mentioned)
- The silver star means you have beated the "Hard mode" challenge, which is also the true ending, so there's no really any other way to get it (it's a shame the saving bug didn't let you see the"true ending" part after the credits)
- As for the text and game over bugs, the music with pause menu, the fading out transition on extras and bax and blanny (dolls and "watch me") being unobtainable, those were fixed in the lastest version now aviable! (2.2.2)
- Plush-Mate poster being stuck in one part is something i haven't noticed (even when using debug keys to activate his ai), however i checked some of his code and changed a thing or two and it should work properly now
- And finally i also fixed the tip on the extras menu
- As for the accesories and the decorations, those are props you unlock after winning and beating challenges
Thanks for repoting these, I recently uploaded another patch (2.2.2) and the 2.0 version for the OG game! if you find new bugs please let me know!