This game suffers from major slowdown! I completed adventure, mini games, puzzles, and surival and got the golden flower trophy with no problems. The only cheat i used was the max money.
However, when i played endless survival the game crashed when i reached 7 flags! I had 2 rows of flowers, row of cob cannons and 3 rows of tall-nuts.
Obviously the DS is so underpowered it can't handle too many sprites. I tried again, this time whittling down rows of flowers, tall-nuts but could only manage to reach 8 flags before it crashed again. Yet some people have claimed to reach 14 flags!
And, i cant fill out the Almanac, there is one last zombie, i think it's the trash carrying zombie. Well i've reached him in survival endless, purposely died before the game crashed to save but it still won't fill out the Almanac.
Also, how do i get mushroom and acquatic plants in the Zen garden?