I definitely did all of this within 7 days ! I used Tarodev's player controller to have more time to focus on the story and the obstacles though, so this helped me gain quite some time ! Yet it also led to some boring bugs, because I struggled to understand some parts of his script ^^'
The z flittering in the menu was desired (I think) ! That was to show that the computer had already started to take control of the game :D
The jail bug, though, was absolutely not desired and is pretty boring as it completely prevents the player from triggering the rest of the stage's mechanics...
Thank you a lot for your review ! I will probably consider polishing it more and creating more stages to eventually publish it on steam, I would love it ^^ you could definitely do the same :p