Battle Island 2 is a monster-collecting RPG: you explore an island, fight wild creatures and rival trainers, and use the money you earn to build a stronger team. The sequel expands the roster and the island from the first game.
It follows the genre's familiar shape — type advantages, levelling, and a squad you improve over time — in a browser-sized package with battles that take a minute rather than five.
A monster-collecting RPG — you catch and train creatures, battle trainers, and build a stronger team with the money you earn.
No — it stands alone, though it's a direct sequel with a larger island and roster.
Yes — it runs in the browser with nothing to install.