Very good level!
1) The very wrong thing: it autosaves when a mode is complete. On easy I went to the teleporter to see what's there and had to restart to get the key. I think these teleporters should take player to a hall where he's warned that he might have overlooked something important on the level and options to return or finish the mode.
2) It isn't obvious what "15 save points" means, it would be better as "15 uses of save points" for example. When I started Normal difficulty and saved after getting the Run powerup I found it curious that the screen refreshed when I saved. So, I saved again and it refreshed again, and again... After the save point disappeared I understood what the deal is.
3) Difficulties should be called Normal, Hard, Very Hard, Lunatic.
4) On Lunatic placement of save points wasn't perfect. I particular it wasn't fun to die at x1047y1000 after that tricky jump at x1046y1000. Dyeing at x1052y1000 wasn't very fun too, but that's ok. Overall, that was pretty easy for Lunatic.
Oh, and why is it called "ForFree"?
May I ask you who or what is "stroy ofc"?
It must be caevstroy's evil twin.