This Article Contains information directly from the Pikmin Games. This article is based off of an Enemy/Treasure/Area/Cave/Pikmin/Character from the Pikmin series of Games.
The Container of Knowledge is a treasure in the PAL version of Pikmin 2, where it is actually a sardine tin. It is found in one of the Emperor Bulblaxes in Sublevel 4 of the Cavern of Chaos. To collect it, there are a number of strategies. If the Bulblax containing the treasure is not in water, it is possible to throw Purple Pikmin between its eyes in the ground to defeat it quickly and easily; if it is in one of the pools, or you have no purples, the Bomb rocks around the level can be used. Lure the beast near these, then move out of the way as it licks them up; after eating a few, it will die. If any Bomb rocks are out of the range to which it will follow a Captain, they can be nudged slowly closer by running into them a few times.