Theres a softlock, due to demons being able to stomp on the button, this causes the game to become unplayable if you have nothing to buy. In addition, the price for light container begins to exceed the amount of 'light' you can possibly have to purchase things, making it difficult to progress without directly fixing/modifying the games internal memory (Through Javascript console)
Hi,
The level cap is currently in place because there is no more content available beyond it. This prototype is designed to showcase the game's theme and some of its mechanics. In a future update, you will be able to unlock new mechanics and upgrades to increase the light cap.
Thanks for the feedback.