Here is the full list of all 30 My Friend Pedro achievements.
Finish the game
Finish chapter "The Internet"
Dodge 1000 bullets
Finish chapter "The Sewer"
Kick enemies 100 times
Finish chapter "Pedro's World"
Complete a level without firing a weapon
Finish chapter "District Null"
Kill 2000 enemies
Kick a skateboard in to the face of an enemy
Finish chapter "Old Town"
Kick a Gas Canister in to the face of an enemy
Break 100 crates
Get a 50x combo
Kill 1000 enemies
Jump through 10 windows
Get an S-rating
Flip 10 tables
Kill enemy by ricocheting bullet off frying pan
Stick a knife in to an enemy
Kill at least 3 enemies with one explosion
Get a 20x combo
Kill 500 enemies
Kill an enemy using a barrel
Get a 10x combo
Kick a frying pan in to the face of an enemy
Juggle basketball 10 times without it touching anything
Get S-rating on 10 levels
Get S-rating on 25 levels
Get S-rating on all levels