My time was 28:29
I got stuck on the first room with spikes for quite a bit, I think it's because of the difficulty spike and also the controls are perfectly fine for easier jumps but could be a biiit tighter if you require precision. I felt like the game sometimes missed my inputs when I tried jumping and walking off the edge at the same time. I'd add an extra check, if the player was standing on the ground a few frames before. You should still allow them to jump in that case.
The game has nice mechanics, I didn't realize at first that the health of the other twin regenerates when she's not active, that's a nice touch. I'd add the ability to attack upwards when holding W
The boss fight was a bit too long, I'd make it hit harder but have less health :)
Very nice game, keep it up!