I managed reduce the file size from just over 40 MB down to 33.6 MB by reducing a lot of the texture maps from 1024 down to 512, the quality still looks pretty good even when viewed at full screen in the web player so I'm pretty happy with that.
TIPS
Making it across the 2nd or middle deadly mud bog
OK now I know there are some people who have been having a difficult time trying to figure that one out. It's actually pretty simple. The normal instinct I guess would be to try and jump to the broken dock on the other side of the mud bog and although it can be done it is a difficult jump. The easy way is to jump to the right towards the glowing mushrooms with the Fire flies flying around above. Much safer and easier jump. I was originally going to remove that little patch of land so you HAD to jump to the other dock but I thought that might make it too difficult for a first game level. I dunno though, what do you think?
Extra Life Heart & Fertilizer Pellets
There is a large broken pipe located at the 3rd deadly mud bog, inside are extra Fertilizer Pellets and an Extra Life Heart. You can always tell when an extra life heart is near by by the "Beating Heart" sound. Climb up to the floating platform and jump onto the 2nd platform, from there jump onto or into the pipe to collect your rewards.
The First Key
This one I notice some people miss when playing the game as they make there way down the path towards the middle deadly mud bog. Be sure to look for the first deadly mud bog to your right as you head towards the middle bog. It can be easy to miss if you are not looking out for it. In the middle of that bog on a rock is the first key needed to unlock the door to the surface way above. jump from the glowing mushrooms onto the rocks to get to the key. Remember "Fire flies" often give important clues, be sure to look for them in the game.