Wow, I just discovered this right now and I’d say this is a really cool concept! The level designs are neat, and a smoother learning curve / more levels using newly introduced elements (portals, etc.) will be appreciated. And yeah maybe more polishment as there are quite a lot of noticeable visual issues. But the time is so limited so GJ!

the concept is very cool and well implemented just the controls need some tweaking

I like that you tried to do something novel but I fear that the execution needed more time in the oven. The controls are akward and there is no way to know what happens when lights switch.

The controls are super weird, also it can be hard to know whats gonna happen when you switch lights

Very interesting mechanic! Was having a hard time imagining the trajectory of arrows from the other spectrum while my character is moving. One suggestion is to maybe add a small visual cue to help the player keep track of those while changing between light and dark? Or even stop the time while shifting?
Anyway, I think the mechanic has a lot of potential and I had fun playing! Congratulation on the entry!