damn , 2:25 on the video - didn't find that !
is there a 4th ability ?
There was supposed to be. Originally I wanted to have it so that by getting all 4 you can ascend up to the door, but I ran out of time to do level design so I had to scrap it and make an alternate path. There is a hidden points area that leads to a second hidden points area, and the second is inaccessible without the 4th ability unfortunately.