Same here. I can't find other 3% chips however I tried and found.

Thanks, I only missed the hidden one right of the destroyed carriage. And to make sure, after the bunker is destroyed you can still have the hidden grenades. It took nearly 20 years I finally play with 100& hidden rooms and bonuses!

Btw I always get 94% hidden bonuses in Modern Wars level 1. how to find other 6% bonuses?

In the first room at Middle Age 2, jump in front of the table at right-upper corner to the arch where you can find a life. edit: I found the last hidden room at Conquistadors today! You can see the boat right-upper corner where two sailors with guns appear. You can jump to the boat and find a life …