Plaidophile

I dreamt I was living in a piece of "edutainment" software. My job was to help the two young goldfish (who were living in a deep river) keep their ecosystem in balance. Apparently they liked burying the Chaos Emeralds (which they stole from Sonic the Hedgehog) under giant planks of plywood which they couldn't lift and so I had to solve their dumb puzzles to know where to position this specialized plywood-sheet-lifter. Also I lost the clues for how to unlock the padlocks they put on the last plank, but fortunately the locks were cheap and/or there was a bug in the game so I could force them open by just putting the key into the second hole first.

Apparently, when goldfish get all seven Chaos Emeralds, they are rewarded with electric guitars. Their electric guitars are tiny and hard to play and have built-in cheap reverbs which you can't turn off.