Fun but not fantastic
Overall a fun game. The gold is interesting because it's really just there as a pity prize if you know you aren't going to get rank 1, because the time bonus is good enough to offset gold bonus usually. The game's short enough that it doesn't feel a whole lot like busy work, but if you don't care to play it to the end, you're not missing a whole lot either. And it's nice the game tells you how many levels there are up front. And for those who want to know, it seems if you beat a level by 1:20, you get 1st rank.
Some things that could be fixed:
*Every time I go to the map, it reverts back to high quality mode which my computer can't handle, so I have to change it every time.
*The button at the very end of the game doesn't do a thing.
* The game only stores your last rank for each level, so if you beat one then later go back and play it and get a lower score, the OCD in me makes me want to keep replaying it until I get rank 1 again, though it has no bearing on the rest of the game. Perhaps only show your highest rank. For those who like going for high scores rather than just beating a game, perhaps show their highest score earned on a level (time+gold bonus).
* Grammar could be improved