Requirements:
Cheat Engine (with Speed trick)
50 coins for metal casing and 2 cash Lemon and piece of wood at least or Metal Casing, Lemon, and Piece of Wood (if you have)

Steps:
1. Open Cheat engine and crazy penguin wars
2. Click Crafting and click research
3. Then buy or click on lemon metal casing and piece of wood (any order)
4. After that Click research
5. It will research after that go to cheat engine and choose the correct process ,.,.
6. Speed trick it by 500 and it will research very fast and finish,.,.,
7. After it finished make its speed to 0
8. Making it 0 will make the game not move right? So Click on Collect many times or use auto clicker
9. Disable speed trick !!!
10. After that reload and see your coins!!!

Note : Metal Casing is not Metal Scrap do not be confused!!