It would be nice the key be granted to you as you complete the last quest. I did on the same launch that I reached the ceiling for the first time and MAAAAN was that frustrating...
There are comments about the freeze bug on the game since june, and as of now, December 31 it's not fixed, I'd say it's something between unacceptable and dazzling
sometimes I can't reach a light soon enough, it would have been better to cotrol the lights from the keyboard using different keys, great game otherwise
 "Renegade Racing"){kind=icon}
 "Knightmare Tower"){kind=icon}
 "Versus Umbra"){kind=icon}
 "More Zombies"){kind=icon}
 "Hit The Jackpot 2"){kind=icon}
 "Mushroom Madness 2"){kind=icon}
 "Loondon"){kind=icon}
 "MegaDrill"){kind=icon}
 "Bloons Tower Defense 4"){kind=icon}
 "Toss the Turtle"){kind=icon}
 "Hedgehog Launch"){kind=icon}
 "Roll a Stone"){kind=icon}
 "Fly Hard"){kind=icon}
 "Snail"){kind=icon}
 "Mushroom Madness"){kind=icon}
 "Cargo Bridge"){kind=icon}
 "Morningstar"){kind=icon}
 "Amateur Surgeon"){kind=icon}
 "I Love Traffic"){kind=icon}