Really cool idea! The stairs in level 1 are a bit too short in my opinion, making it super hard to get in a good position for the first jump. Also, the camera could use some smoothing. It feels a bit jittery at the moment. But nice concept!

The main concept is really unoriginal. The game got away with that by having a pretty cool mechanic, that being the colored walls. The level design however, was awesome at some places. I really like the name as well. As Mensch said before me, the physics and graphics are not great. Unless you're moving both balls at once, one's getting dragged behind, slowing you down. If you're moving both balls at once though, the one in the back will get stuck on the rope, slowing you down. The graphics are bland, if you would have changed the default skybox, it would've been okay.

With good level design and mechanics, but not very good everything else, this was solid. 6.5/10

The idea itself is not that unique, but fits the theme perfectly. And i think you really pulled off that level design around te concept of two connected Blobs! 

Of course the visuals could be improved and the physics are not perfect. If one ball is in top of the rope it cannot jump.

PS: i love the "Red and Blue" Pun :D