PAKU.io is an addictive IO game that is about the big enemies eating the small enemies. When you first spawn, you will start moving a dot with a small mouth around the map to collect a lot of generated dots so that you can grow the size of the mouth. But its size will reset to the minimum whenever you level up, while the limit is still growing through over time. Stay away from the dots that have bigger mouths than yours, or else you will get eaten. See how long you can survive!