I've decided to try using a standard format for all my feedback this time around. Please excuse me if I come across as overly curt or miss something important about your game. I'm writing these all quite hastily as there are a lot of games in the jam this year!
What I liked
It's a really, really cool gameplay concept. I think it has been done before, but it's the first time I've played it, and it's new to me.
The game is, for the most part, very polished, and feels like a real commercial indie game.
The graphics and music are just super nice.
What I didn't like
The jump pads are super frustrating. I managed to figure out all obstacles up to that point but couldn't get past the level with the jump pads.
Did I think it was so bad it was good?
I pondered this for a long time, probably far longer than I should have for any one game. I played it, put it away, and came back later. Ultimately, I think the answer is no. It's not so bad it's good. It's just good. The only thing on the fence is the gameplay and really I think that's more innovative and interesting than bad in any way.
My thoughts on the modifier implementation
Difficulty and a weird movement method. I like it, but I'm not sure how well or creatively it fits the modifier.
Other remarks
The game does not play well with DPI scaling on Windows at all. I'm running a 4K monitor with 150% scaling and the UI breaks horribly unless I force system scaling for the app. Even then it screws up my screen resolution and some things still break.
Verdict
A genuinely good game.
If you have any questions, comments, queries or concerns, please reply and I'll do my best to get back to you.
EDIT: I just realized that a build with GUI fixes has been released.