First, open up PvZ and cheat engine 5.6.1
Click on the flashing computer at the top left of the screen and pick the one that says popgame1.exe
Then go into any level. On cheat engine where it says value: type in the amount of sun you have and hit new scan.
Next go back onto PvZ (dont put it on full screen) and spend or gain sun (anything to change it from the current amount.) Then type the new number in the value box and hit next scan.
Then some should pop up on the left hand side where it says adress and value. Click on it and something should pop up on the bottom.
Next, double click where it says value and type in 10000 and also check the box that says frozen.
Then, click memory view in the bottom left side. Right click the second one(it says jmp 0061ea12) and select go to adress. Then type in 0048728c and something like this add dword ptr [edi+24],01 should come up.
double click it and erase the ,01 to 200. It should look like this (add dword ptr [edi+24],200) Something that is labeled confirm should pop up.
Just press Ok and your ready to go! It takes a few levels for the sun value scan to stay so you might have to do the first part where you do the value scan for a few levels but after 2-3 it should stay 10000.
This Cheat/Hack will stay as long as you do not exit out of PvZ or Cheat Engine.