Microplastics are an important currency in Another Crab's Treasure. They allow you to level up and purchase various upgrades for Kril, making him more powerful and tougher against the stronger enemies you encounter as you progress through the game. Here's where to get Microplastics in Another Crab's Treasure.
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If you collect junk, hair clips, and similar items while exploring the ocean, you can trade them in for microplastics at Prawnathan's Prawn Shop and Bottom Feeders. Both shops are located in the Lower Crust area of New Carcinia. Unfortunately, you can't beat him up since he stole your shell and made you jump through hoops to get it back. We've marked the location of both shops in the screenshot below.
Keep in mind that you can both buy and sell junk in Prawnthan’s shop. There are some useful things you can buy here, but I would save the extra money for new shells or shell insurance. Depending on what items you bring, you can earn more Microplastics, so make sure you collect everything you see while exploring.
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