Where is the camp store

The level is really difficult, yes, but it's passable, here are some tips:

• Protecting Olly: Do not concentrate on the figments, wait until you get to the last teleportation point, just concentrate on protecting Olly. Don't use confusion bombs on the rabbit, just pick it up with TeleKinesis and wait until Olly arrives there. The sword throwers part, they always cough before throwing the sword, so synchronize with them.

• The Tunnel of Love: Go fast on the first part, where there are a few gaps ahead. On the second part, where there are a couple of 3-gap sets, go a little slower, but not too slow or you won't reach the other part. You will reach a tent.

• Before Entering The Tent: Now it is the time to go back and collect figments, cobwebs and whatever you want. After you do that, enter the tent.

• First Battle with the Butcher: Wear Levitation. The Butcher has this pattern: 1) Low slash (jump to evade it), 2) Lateral sweep (keep far away from him), 3) Floor smashing. When he smashes his blade, it will stick into the ground. Use this moment to jump over its arm and hit him in the head. Do that 3 times.

• The Big Top: This part is the real PITA. You really need to refine your platformer skills. There are two really annoying parts: when you get to the 3 ropes that are one over another, and the spiraling fence.

  • The 3 ropes: Notice that they are not completely parallel, but rather inclined. If you try to get the rope in its higher height, you will lose a precious extra second to lose the swing, try always to get it from its lower height, thus you manage to evade the bombs. You can also use invisibility here to evade the bombs as well. If you're already at rank 95, you won't have to worry about the bombs, they don't make you fall, and they only take a small amount of mental health, enough to regenerate it quickly.

  • The Spiraling Fence: This is the part I got stuck for a long time. I found that to pass this part I had to reach the left extreme of each fence, side jump to the left (do not go forward yet). After you jump to the left, quickly use levitation and go forward to reach the next fence. You will dominate it soon enough.

  • The stairs: If you're quick enough, you can reach the stairs and slide youself down all the way before the water reaches the stair. But if the water reaches the stair, you are still able to jump high enough with levitation and go up all the way. The water won't be a problem.

• Second battle with the butcher: The butcher is in flames, so you won't be able to touch him. Just use telekinesis on your fathers bombs and throw them at him.

• Final battle: Just run away when you're little, and smack him when you're big.

Hope that helps, I found this guide very useful: http://www.gamefaqs.com/pc/922157-psychonauts/faqs/37113

You can't attack the boss directly, but if you attack the yellow crates when he breathes in, you will cause him to swallow bones and take damage that way.

Once you hit him about 4 times this way, the perspective changes and you get a first-person view of the lungfish chasing you. Basically you want to avoid or attack the enemies and keep moving while you stay away from the outer wall that separates you from the water.

Double-jump across the platforms and punch down some clear walls, then jump up some large steps and run up some small ones. Swing on some bars next to keep climbing, then use levitate to bounce to the next ledge. Run up the stairs and keep following the path to begin the next part of the battle.

The tactics are the same in this part, but sometimes the boss blows out air instead of inhaling it. So ignore the yellow boxes when this happens, and only break them when he inhales.

After about 3 more hits it's time for more running. Your first obstacle is some boxes to jump over and a beam to slide down, then you want to do a double-jump to some netting up ahead and bounce with levitation to a higher ledge.

Ignore the stairs and double-jump up the platforms instead, then smash the doors in your way and grind down the beam [or just drop to the ground] as the next part of the battle begins.

For this part of the battle you want to keep your distance and try not to step on any sucker fish. Otherwise you should get behind one of the clams and close enough to touch it, this way the boss should get stuck on the clam when he tries to attack you.

Once this happens you can get in close and score 3 quick punches before he breaks free. Once you connect with about 9 punches, the battle is finally over.

Source: Psychonauts Walkthrough - IGN FAQ's