1- The original won't load on my work computer hehe
2- 7! err I mean 6.9! It is fun/intense trying to avoid the red dudes and protect the burger. It might be better if the difficulty ramped up a little slower, so the player can get into the rhythm of the game better. (kinda like in Vampire Survivors, start super easy and then gets crazy)
3- I think it could work on PC or Mobile~
4- Very clear and easy to understand, the text sound in the beginning was a bit loud. The UI look with black/gray/white is very nice. Also the effect on the play button is cool!
Keep it up! Please check out my metroidvania when you can :D