I enjoyed it. Not too long or challenging, but I don't think that's the point. Made me jump a couple times and was interesting.
Note on the chests: the codes for each corresponding chest is in the same room that the chest is in. I think that's true for all of them.
Clever, fun game. I liked that while it was a little devious, it wasn't impossibly difficult. Must admit I got stuck on 2 for awhile... until I went to give up ;)
They should have done some badges like "Have a run time of over 4 minutes" or "Make over $100k" on a single day" or "Collect $500 cash on a single level."
I've played this game 5 times in the last little bit and I was able to get well over a 50 multiplier every time (89 was my best in the last game). I was also able to break 2,000,000 points 3 of the 5 times and was close on the other two.
It's not all about getting yellows/purples and avoiding reds. If you have 100x on your multiplier, that's great, but it won't score you any points by itself. You need to make an effort to be collecting all the other shapes the whole time as well. They are not "useless" (as another poster said) because they are the ones that give you points. Also, getting a red doesn't just knock a number off of your multiplier, it cuts it in half. That's a pretty steep penalty and I'm guessing you're probably hitting a few reds without realizing it.
Maybe those of you complaining will say "That's what I am doing!" but maybe you're just not playing the game as well as you could be. Just because you're unsuccessful doesn't mean it's the game's fault.
To kill a red winger, toss him up in the air and grab him once his wings pop out. Slam him down into the ground, but make sure you don't release him to high up or he'll pop those wings back out. One time usually does it.