Oh, another layer switching game!
On QWERTY keyboard I had to press W to switch character. Did you setup the key to Z in physical layout on an AZERTY keyboard?
It’s quite tough that the character who sees purple platforms doesn’t have a lamp / light cone vision sometimes.
In the first stage, after the many jumps I had to switch twice to finally see the purple platform.
At the end of stage 1, there were spikes on a high ground and it didn’t seem jumpable but you could jump over them
Oh, I just finished the game! The perfect length for me (testing games quickly from various people after GodotCon Amsterdam).
The Super Light wasn’t as impressive as I thought, I thought it’d paralyze the monster or lighten backward as well, but it only increased intensity a bit, giving no new information.
It looks like your next game is a Metroidvania with the same title so based on the same principle. A horror Metroidvania?