Change your levels on ferocious mode
When you type in ferociousneggsareontheloose, you automatically start on medium level. To change the level, type in the cheat (ferociousneggsareontheloose) and then purposely run into the wall or into a ferocious negg. Then press restart. Then you can change the difficulty. – chiclet0831
Make the tail fall off
I got this secret in classic hard mode, but I bet it would work in any level. I was fooling around, and I tried to make the Meerca go diagonally. So I pressed right-down-right-down etc very very fast. My tail (of one or two neggs) flew off. (Yes, I know it sounds crazy but it happened.) Then every time I caught a negg, I got the points, but I didn’t have a tail anymore. – Lydia
Activate a new option
On the main screen, type in ferociousneggsareontheloose and it will give u a new option with neggs running around, instead of staying in one spot, like in normal mode. It doesn’t make it any easier, but it is somewhat fun. – Alex
Make a staff member appear
In the menu screen, click on the top right of the Meerca’s right eye and a person will appear! He will only stay for a few seconds, and as far as I know it doesn’t do anything for the score or help you. You can also do this with the Meerca when you lose. – dude_and_lulu_girl
Gravity mode
On the beginning screen (the game mode and difficulty screen), type in superextrahypergravitymode. Do not add any spaces and do not press enter. You should see an additional mode called gravity. When you play it, don’t move to the center or the screen! The Meerca will get sucked down. Bumping into the wall or crashing into the red negg will also suck you down. Additionally, the lightning bolt negg is worth 592 points and the yellow negg is worth 18 points. – diep_