1: Chu-chu Nezumi
Up a tree to the left of the Stotch house - shoot it down with a ranged weapon.


2: Furrycat
Hiding behind the trees to the right of Kyle’s house.


3: Lambtron
Hanging from the right-hand side of the Tower of Peace first floor during the 'Mongolian Beef' side mission (obtained from Mr. Kim in City Wok) - shoot it down with a ranged weapon.


4: Monkay
In Butters’ bedroom, upstairs in the Stotch house.


5: Pengin
Inside Cartman’s garage - get the key from the drawer in Cartman’s front room.


6: Sna-kat
In a tree to the left of City Hall - shoot it down with a ranged weapon.


7: Velocirapstar
In an open window at Token’s house - shoot it down with a ranged weapon.


8: Roo-Stor
Inside of Chaos Lair, in U-Stor-It locaion (behind the bum that sells goth cloths, next to the cow farm). Key to it: Butter's room. Use ranged attack.


9: Flowerpotamus
Inside of skeeter's bar, in the background. Use ranged.


10: Fatdactyl
Cinema, above the ticket seller. Use ranged.


11: RabbiTech
Police station, second floor, on the shelf.


12: Poodlesaurus Rex
South Park Elementary School. Just hit the air vent with a ranged attack. Note: The chinpokomon will be here also on your second visit to the school, if you would miss it.


13: Roidrat
The roof of the Giggling Donkey.


14: Brocorri
In front of the Mongolian Tower. You had to defrost before get it.


15: Beetlebot
Found on the Alien Ship, right before finishing the level.

1: Gerbitoad
Go down to the sewers. It will be next to Mr. Hanky's house behind a caged door.


2: Cosmonewt
Go to Stark's pond. There is an UFO inside the lake.

(After you came out Tweek's coffee shop, you must go with the elves, to get the next Chimpokomon)

3: Stegmata
Inside of Kyle's garage. The Key to the garage is in the Broflowski parent's room.


4: Vamporko
Use probe again to get behind the fence. It's next to the community center.


5: Ferasnarf
Side Quest related. Get the quest "Wasted Cache" from Mr. Mackey (sitting at the table, in the community center), before entering the bathroom, as Randy suggests, because he will super kick Mr. Mackey. This may delay the quest pickup date.


6: Gophermon
Right after you have learned the sneaky queaker. You will exit the bathroom automatically. Just turn around, and re-enter. In the last toilet stall.


7: Gunrilla - In the government meeting room, after the government guys have left it. On the shelf, left, in the corner. You can't see it if you are too close, so move to the white board. Use ranged. This is at the location of the crashed UFO. You can't get it after final boss fight.


8: Donkeytron
In the kitchen. During your 2nd visit to the school, you will enter through the kitchen into the building. Use magic on the oven.


9: Pterdaken
In the school, inside a locker.

1: Accountafish
Inside of News Office, next to Esther. Hit the vent, and gnome shrink yourself.


2: Terribovine
Shrink yourself, and move under the bench from he left side.


The next can only be found after you proceed in the story quests, and you go to recruit the Girls into your army.

3: Fetuswami
Story related. Quest: "Unplanned parenthood". Once you are exiting the clinic, you will face a minigun. There is a dead soldier with a grenade in his hand. Shoot the grenade. Enter the newly opened way.


4: Mouse-Tik
The girl's hide out.Once all the quests for the girls have been completed, so after finishing "O Canada", you can move around freely in the girls clubroom.


5: Biebersaurus
A crab people will "guard" it in the sewers. you must own the magic spell "Nagasaki" to break the rock next to it, which you will learn from Terrence and Phillip in Canada.


6: Shoe
This can be found at Clyde's fortress. After you have saved Ike, and he added you as a friend, use the alien probe, to teleport up to the highest level. It's missable, because it lacks the brighter colors the others had, and the background is also dark here.

I hope i can help you to collect them, please rate it and check my other guides. :D