Hello,
The game is pretty fun to play with an awesome unique concept. Really well done. At first, before the game actual load, on the cutscene, it was a Lil confusing whether to start playing the game or to hit continue, so you should make it more clear and differentiate between the game and the cut scene. Also, the game feels like a Lil off when we play more. So you need to also figure out some way to keep player motivated high. You can introduce some quick to finish and easy levels at the start and then ramp up slowly to bigger rooms and higher difficulty levels. The Game Flow design is required to keep the retention long. You can check this article for more details - https://www.void1gaming.com/post/flow-theory-in-game-design