i will also join the Icely bandwagon, stopped the video immediately and enjoyed the game all by myself. what can i say... stellar puzzle design. i really had an epiphany playing this and THAT's what a good metroidbrainia is all about. Bravo to Sufferbox!
that was amazing... even though i couldn't solve some of these (notably the second from the bottom-left, i wish i got that one cause the solution is astonishingly beautiful), i really enjoyed the ones i could solve. stunning, bravo!