I'm only going to give you this hint: the "w" and "s" keys are very useful, once you unlock them.
I learned more about fractions from this than I did from any other amphibian-themed flash game, period.
I just want to say that 'Static Cling Tongue' is way overpowered. If you hit the bugs when they are grouped together at the top of the screen, your frog is basically the Angel of Death and the other upgrade shouldn't be a Turtle, but rather a Pale Horse.
If you have the turtle, press 's' and go down. Then you'll see this game in all its glory. Get the warp drive, never look back.
Alright, if you're further confused, I'll give you this next hint. Step 1: get the turtle Step 2: Press 's' at the start of the level Steps 3-??: Enjoy
I'm putting this here to bring people to the comments section, because it actually is important to see the hint above.