It has over 50 masks for Ash and 11 driller skins. There are also appearances from SEGA classics like Jet Set Radio, Super Monkey Ball and Crazy Taxi. 50 new "virtual missions" DLC too.
The Virtual Rabbit Missions add over three hours of new gameplay, and that's priced at $4.99/400 MSP/£3.69. Pimp My Rabbit Pack goes for $2.99/240 MSP/£1.99.