The moon race is relatively easty with sir colin, just keep getting boosted and you'll get it. Very nice game, the only thing that annoyed me is that the jump button sometimes didn't seem to work. 4/5 and the final video is also great.
People are complaining about the comp getting good dice, but since I get the same every now and then (just like the CPU) I don't get mad at losing a game of dice. Being reckless or cautious pays sometimes. Favorited and 5/5. And it's screaming for badges.
Jack, level 19 isn't as hard as you think. Try using the corridors. You put a blue orb at the beginning of the narrow path and another one in the middle and then lots of red and black ones around them, and the waves won't get through but a couple of creeps.