* All new multi-player Tactics Mode, coupled with the player’s secret island base feature.
* New player ranking system awards the player with experience points; higher ranked players gain access to more of the game’s locked items.
* The utilities ‘Flare’ and ‘E.M.P. Grenade’ appear only in Worms: Battle Islands.
* The only 2D version of Worms to feature the ability to design and create Custom Weapons.
* Brand new in-game environments not previously featured in a Worms title.
* Appearance of a player’s team is customisable to a higher degree than any other 2D Worms game, with new items including masks, backpacks and customisable power-bars.
* Fresh presentation theme with all menus seemingly taking place within the player’s secret island base, and all operations handled by the player’s own four-worm strong team of staff.
* PSP exclusive " an exclusive ‘Time Attack’ mode, comprised of ten individual time-based single-player challenges.