You think Original mode is that bad? The original standalone version is even more hardcore. And it has in-game award *Finish the game with no deaths*. How!?
Infinite mode & completing game in even 5 minutes are easy. 1:Place 3 Proxy Mines. 2:Buy 8 Buzzsaws and place them on X axis, and 8 Launchers under them. 3:Dont buy anything else, because Turrets hit turtles outside of Buzzsaw wall, and Sentinels just destroys turtles.