1,393
(400)

## BattleBlock Theater

There are a maximum of 30 BattleBlock Theater achievements worth 1,393 (400)

76,744 tracked gamers have this game, 834 have completed it (1.09%)

# Freedom Hero171 (30)

### Free all the prisoners in the Gift Shop by unlocking or trading.

• Unlocked by 2,373 tracked gamers (3% - TA Ratio = 5.68) 76,744

Solution
(updated 5-5-13 with extensive revisions to with the exact cost progression of heads, and concomitant update to economical acquisition strategies)

This achievement is for acquiring all of the prisoner heads. This achievement does not count special heads (the star category), it only counts the four regular types: circle, triangle, square, rectangle. There are 64 heads of each type and thus 256 total heads. The heads can be acquired by purchase from the vending machines in the gift shop area, or via trade form another player. For each type of head there is one default “blank” head that is untradeable (you always have it), the other 63 can be traded. In order to pop the achievement you must possess all heads at one time, acquiring a head and then trading it away will not make progress towards the achievement.

The gift shop sell the heads from four vending machines sorted by type. These machines cost gems, starting at 10 gems and increasing based on how many heads of that type and total that you currently have (more on prices in the next paragraph). When you purchase a head it gives you a random unacquired head of that shape.

Head cost seems initially confusing but upon further testing proved to be fairly straightforward. The cost of new heads depends upon how many total heads (counting blank ones) you own, based on the following table:

Note that 'star heads' do not count into this calculation at all. Additionally if you have too many of one head type then the price for that head type may be higher than the price for other heads. This system seems to be in place to raise the price if you try and buy different heads types on different profiles.

1-29 one type: 10 gems minimum
30-59 one type: 15 gems minimum
60-63 one type: 20 gems minimum

How to get all these gems? Other than just through normal progression (which would be hard to estimate time), I identify three major ways to get gems, and calculate rate of earning gems:

regular arena mode: ~0.5-2.5 gems/min
local 4 player arena: ~10 gems/min

If you just play single player arena matches, these typically last 2 minutes and you earn 1-5 gems, for a rate of 0.5-2.5 gems/min. If you have four local controllers, you can play the challenge mode (more than one player required to complete) in coop with all four players (detailed below) and earn 16 gems for every round of slightly <2min, for a rate of ~10 gems/min. Finally is the trade glitch which can earn 100 gems/min if you can execute 5 trades/min

A couple other minor factors can speed things up. When executing trades, the cursor starts at the position of your current head. Therefore when doing the money generating trade it is advisable to have your head be the head that is directly below the 5 gems slot in order to more quickly (a cat circle head guy). If you are trading 0 gems (in order to transfer heads) you want the circle head that is directly below the 0 gems slot.

If you don’t want to do the trade glitch (or can’t because it has been patched out), the next best way is to use the 4 player arena coop challenges (multiple players required to complete level option). Sign in all four players to profiles (guests can’t trade), and play one of the easier levels. Generally you can get through 95% of the level completely solo, but there will be one spot where you need a second player to stand on something to make a platform appear, or throw you up to get a gem, etc. Play through the level as normal with one controller leaving the other three at the entrance. When you get to the two player section, suicide with a second player (to warp them to the closest checkpoint to you) and then use two controllers to get past the 2-player spot (this may require a bit of contortion), then finish the level as normal. You will earn 4 gems for each signed-in player, or 16 total.

With all this information, it is simple to calculate an estimated time to both earn enough gems to purchase all of the heads, and transfer all heads to your main profile in order to estimate how long it will take to get the achievement, and thus the best way to go about it. I assume 5 trades/min rate, and the gems/min rate in the above table: