Overcooked! All You Can Eat

Very quick and easy to get. Load up the game and choose Arcade - Coop - Couch and then choose Glazed Glaciers. Make your character fall in the water immediately and you will take control of your other character and do the same. Repeat until the achievement pops. Will probably take less than 30 seconds.

Several different ways that you can die, including falling into water, fireballs, doors closing on you. You'll respawn after 5 seconds... repeat 9 more times and you'll unlock this one.