Believe it or not, it's still possible to play flash games without Cheat Engine. Like this BTD3 trick. Not sure if it's quite a cheat, but it is a handy tip to get you to your win.
Check this video tutorial out to learn how to beat Bloons Tower Defense 3 with a trick (10/24/09). Fo this glitch like cheat, you need to save enough money for a Super Monkey. Then you need to place that Super Monkey in a good position, then side click and put him where you want. Then upgrade it until ready to fight.
Bloons Tower Defense 3 is a flash game from Ninja Kiwi. Learn how to hack Bloons Tower Defense 3 with tricks and cheats.
Description of the app on NinjaKiwi.com:
"It's here. After 319 days, 32 Million plays and countless requests for a sequel to Bloons Tower Defense 2, Ninja Kiwi is proud to present Bloons Tower Defense 3. This time, use the all new towers and upgrades to work your way through 8 all new tracks and 3 difficulty modes to achieve that total Bloon popping satisfaction. Only available on Ninja Kiwi!"
Search WonderHowTo for the latest Bloon's Tower Defense 3 hacks, cheats, tricks, tips, and glitches.