I made Pizzaface appear instantly as one of the reasons why it's different from The Pizza Gauntlet. Also, all of the obstacles before pizza time that would make the gauntlet impossible are removed.
Yes, many people have suggested this and it will be implemented in the next update. While you wait for the update, you can turn on instant restart so that it instantly restarts the lap and you can't exit by pressing grab.
Easy mode makes pizzaface slower, hard mode makes pizzaface get faster when you're farther away, hell mode makes pizzaface spawn faster and adds the war timer.
As for the secret blocks nor working, It will be fixed in the next update.