South Park: The Stick of Truth - Chinpokolypse Achievement

Achievement - Chinpokolypse
Collect all the Chinpokomon.

There are 30 Chinpokomon scattered throughout the game, some of which are missable, as they are in areas of the game that you can't revisit after story quests.

Do Not Miss These Chinpokomon

If you miss these Chinpokomon, you will not get another chance, so be sure to look for them in the following missions (in order of appearance).

Roidrat - (The Bard) In the attic of the Giggling Donkey
Beetlebot - (Alien Abduction) On the UFO, shoot Beetlebot on the monitor in the room before the final boss
Gunrilla - (Gain New Allies) Shoot down Gunrilla from the top of a file cabinet in the government meeting room.
Pterdaken - (Attack the School) In a locker on the second floor of the school.
Fetuswami - (Forging Alliances) This is picked up next to the automatic turret gun in Unplanned Parenthood.
Shoe - (Beat Up Clyde) At the very top of Clyde's fort, use the anal probe to warp to it.