Here is the full list of all 11 Serious Sam: Kamikaze Attack! achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Put on a head
Finish every level in the Jungle
Blow up Sam 25 times
Kick 150 frogs or turtles
Finish every level in the desert
Boot 150 bombs
Stay airborne for 20 seconds
Smash through 100 obstacles
Kick 100 missiles
Blow up Sam ten times
Blow up Sam for the first time