I'd really like to add levels.
My current favorite level is level 5.
Level 1 & 2 are just there for introduction so they're also needed.
But I do not like level 3 & 4.
Level 3 is a bit too linear and level 4 is a bit confusing.
For this game level design was definitely the hardest challenge and I finally only understood what I could do with the mechanics I have when making Level 5 so I've got a couple more ideas for new levels that I'd like to try out.
For more mechanics I'm not sure what I'd like to add.
I had 1 more idea with enemies where they would be walking around on the same path and with the perspective of your camera you could already see them while your character might not even see it yet.