I'm going to use this pinned post to jot down a few notes about what's in the current beta branch. No guarantee that it's stable, but by all means feel free to check it out and leave a comment!

Hi! Is there an option to disable screen shake in Operation Hardcore? Thanks!

I do not know how to get to the secret stage. please tell me.

Hi! I have just completed the adventure mode on easy, and I didnt get "Just Warming Up Beat adventure mode on easy difficulty". Maybe do I need to complete the secret alternative levels, or it is bugged? Because I completed the adventure mode, and that's what the achievement says. ...

Hi! I'm Varda from the Steam group Elite Giveaways. May I have an email to contact you for press issues? Thanks a lot.