Hey! I played through the first world. It was alright. The gimmick of using the top of the cube was cool, but other than that the levels felt kind of samey. It probably gets spicier at the later worlds, but the first world at least, it felt like it could be compressed.
I felt like the physics were a little wonky. Like it wasn't entirely satisfying watching the ball travel, it behaved a little bit strangely.
It'd be nice if you could click on the tools without needing to open a dropdown. Or better yet, have shortcuts.
I didn't use the regular brush tool that much, I thought the line tool was more reliable.
Dragging using the right mouse felt waay too crazy, I just used WASD.
Here's a VOD of me playing it: https://www.twitch.tv/videos/1582929536