Cool game! I was very satisfied with the movement of the cubes - they flow quite nicely along the level and I like how you interact with multiple of your own cubes to get to places. My one nitpick here is that jumping isn't always consistent depending on what angle your cube is facing, which makes it a bit annoying when you're trying to parkour and reach a place but the cube doesn't jump as high as you would expect.
The game also communicates what you're meant to do very well while using very little text, which means the levels are intuitive to follow. There were few not so fun bits, like a section in level 3 in which you have to use the first orange as a platform for the second orange which was hard to see because the wall was in the way, so you sort of jump randomly until you manage.
I like how simple the concept is and how well it works, so I'm excited to see more improvements and features, keep it up :)