Got to level 9 twice before dying XD, It's a very well designed game, the twist of adding the block's length quite surprised me to be honest (in a good way!), like oh man the game's harder because it's harder to move around now which I thought was pretty interesting.
Btw this could be a skill issue from me but I find that certain layouts are just waaay too hard to navigate through (using the 3-length blocks), some areas feel unreachable, especially with the faster spheres.
Overall it's a very solid jam entry, would love to see more player shapes!