Thank you so much for your feedback!
The life system is actually added to hide a bug. During the development period, we noticed that if the player keeps on dying and restarting, the game can get very laggy. We couldn't find what is making it laggy. So, we decided to add a health system to cover up this bug.
The game mechanic consists of 2 dimensions, aka two sides. when you go to the other dimension, you go to "the other side".
Wow 97.07! You almost beat my record.