It would be good to have a running total of balloons (or maybe "pop potential") in the level, so when I'm going for a diamond trophy I can tell where/when I've missed some.
@shadree, the record pieces will "accumulate" as you find them, and likewise the parts of the mechanical orchestra will move over to the main body of the instrument. (I agree that it's not very clear how many parts the orchestra has, or what items in the workshop are supposed to fit on it.)
Huge thanks to the devs -- thanks to this game, I've finally stumbled on the name of a song that's been rattling around in my head since last winter! (Mozart's Symphony No. 40 in G Minor.)
As others have said, the "impossible" badge is more of a test of endurance than talent. Don't sweat the 10,000,000 point requirement -- frankly, completing the campaign with *less* than 10,000,000 points would be the harder challenge!
Holy cow, I just noticed that I can un-select and reselect my skills -- I'm not limited to having just one per column or stuck permanently with my choices. Thanks devs!
I have defeated every gladiator in the arena. My house is complete. My trophy halls are filled with records of my deeds. I am single-handedly responsible for hyperinflation, driving local potion prices up some twenty-one orders of magnitude.
And yet...I cannot achieve that thrice-cursed silver medal in dodge or strength training!
BTW, I found it easier to get Ultimate Rebuilder by using a small city. I suppose that might be because 4 blocks and 5 people is a larger fraction of the smaller city.
I hear the phone's dialogue in my head as sounding kind of like Click and Clack (from Car Talk), or maybe Gilbert Gottfried (e.g. Iago from Aladdin) or Janine Melnitz (Ghostbusters) -- a brash New York City or Boston accent.
I remember playing this game waaaaay back in the day, and enjoyed it then, but I can't give this game better than 2 stars today because the controls only work ~80% of the time -- about 1 in 5 control inputs get ignored, delayed, or extended after the key is released, and in a metroidvania platformer especially, that's just not acceptable.
I would have rated it higher if the controls had been a little more responsive. It's fine for zombies to be slow, but occasionally failing to register a jump (or continuing to run after a key is released) is a problem...
 "Bloons Super Monkey 2"){kind=icon}
 "Beam Ball"){kind=icon}
 "Picma Squared"){kind=icon}
 "Musaic Box"){kind=icon}
 "Robot Wants Ice Cream"){kind=icon}
 "Balloon Invasion"){kind=icon}
 "NoNoSparks: Genesis"){kind=icon}
 "Monster Clearer"){kind=icon}
 "Swords and Souls"){kind=icon}
 "Rebuild 2"){kind=icon}
 "BackDoor- Door 1"){kind=icon}
 "Robot Wants Kitty"){kind=icon}
 "i saw her across the world"){kind=icon}