Really great game! I didn't expect to see this kind of puzzle content but it was a welcome challenge.
Only drawback (and maybe this is just my stupidity) is that I could not beat lvl 3. I was on the web version, and literally tried everything for 30 minutes: droping glass into drawer, droping glass onto floor, jumping on roomba, picking up glass, giving bird to roomba, cheating the scale with glitches, etc.