Look, I know you were trying to make it "challenging" and stuff with the timer system, but don't just think "Hey, I can beat this easy now, since me and 10 other people have beaten it 80 times, so I'm gonna make it harder so it's more fun for all 11 of us." By doing that, you make the other 99,900 people ragequit because they never had the chance to practice each stage 50 times before the timer was added...
for people having difficulty with the medium challenge, try playing as a poison mage. You can easily win when you have them suffering damage, even while you're defending. ^-^
I hope everyone realizes that the trophies are only awarded if you get the amount required in a single week, not over the whole game.
Perhaps vote up so others can see...?
I was thinking...
Perhaps, if it didn't upset your goldfish bait idea, you could make a semi "breeding" system.
2 Whales, 600 Seconds = 4 goldfish
That way goldfish could cost time or money.