I am trying to get the first trophy. You have to clear the level without upgrading a tower. I keep getting a 'failed' icon at the bottom of the screen, but I'm not upgrading or walking near towers..What the hell am i doing wrong?

The towers are probably updating because they are killing so many monsters. You have to keep selling the towers as they kill monsters. If you push L1 (i think) it shows a status bar of how far away until the tower updates to the next level

Like the poster above me already said. The towers are upgrading by their selfs because they are killing the monsters. Hold L1 to keep track of their experience bar and any tower going over 50% sell them, then rebuild. Repeat it until you complete the stage.

Try to keep your towers close to each other so you can easily reach them and sell them when theyre about to level up. Run as well by pressing and holding circle, it helps.

thanks. Although I'm so frustrated I think I'm going to give up.

Moving this to the trophy section.

I think this was the easier trophies compared to the crossing bridge and scrooge.

I got it on my first try and here is the strategy i figured out...

1. KEEP L1 Held, don't let go!
2. Build all towers in the middle of the "S" and In a libe so you can stand behind them and demolish them faster
3. At the Boss, Build Tons of Canon Towers, They will not UPGRADE. A tower only upgrades if it gets a kill.

i'm having a good time getting the trophies, but i was a lot harder (frustrating) to get all the trophies in super star dust, but i got it already...

I suggest using more arrow towers than cannon towers. Reason being that the arrows kill one enemy at a time, so are less likely to suddenly upgrade. Cannon towers can kill around 5 at once, so they could be half full bars one second, then the next second you've lost the trophy. Either way sell any towers before their bars are half full, you shouldn't be too short on funds.

All good advice. Hold L1 all the time, run everywhere and demolish/rebuild towers (especially cannons) as soon as they get half way.

If you thought that was hard wait until you try scrooges return or rainbow team! Aaaaaargh!

Dont give up! lols Its one of the easiest to do. Wait til you get to the crossing the bridge, I gotten 4 tries and still nothing.

Rainbow team I meticulously followed a guide and on the 19th wave I lost one villager to a spider that had negligible health remaining >. I hate how people will just throw a guide together that works, without trying to make it perfect. If I made a guide, I'd rerecord it until I at least never flukily avoided a kill. I tend to end up with a ton of extra money compared to the guides, and more efficiently upgraded towers because of hindsight after seeing their little mistakes. I find it strange how few of them seem to understand how important interest is. If you build a tower just before the end of a wave you are losing money via interest, also you should collect as much money before the final enemy of a wave dies to increase your interest. I'm right about that aren't I? In guides they'll often sit upgrading until the wave is fully dead, then collect coins.

Too true valleyshrew. Albert Einstein was asked what the most powerful force in the universe is and his answer? Compound Interest!

I think you shouldn't need a guide in the first place. I got that one the old fashioned way - trial and error. It is kind of the point of the trophies.

It is kind of ironic that you would take the easy way out in to begin with, and then complain that it wasn't even easier.