This is a discussion on Card-Jitsu Tips within the Club Penguin Cheats forums, part of the Club Penguin Cheats | Secrets category; Before competing against Sensei:
Don’t play against Sensei until you are a black belt.
Don’t quit, losing will also help ...
Don’t play against Sensei until you are a black belt.
Don’t quit, losing will also help you. Once I got a belt right after I lost.
If one of your friends is a ninja, go against him/her, and tell them to lose. When competing against a ninja, and you beat them, you have a higher chance of advancing to the next level.
Don’t bother buying those power cards. They are not going to help you much unless you have lots of them.
Use your brain. Don’t go for the obvious win. It can be a trap.
Sit next to someone smart. They can help you may smart decisions
You have 20 seconds. You don’t have to make up your mind within the first 5.
When competing against sensei:
Only compete with Sensei if you are a black belt. If you are not, he is going to win, regardless.
It should only take two or three tries. You can’t beat him on the first.
He gets weaker and weaker.
It shouldn’t take any more than 5 minutes.
Once you win, you get the ninja mask and access to the ninja hideout!