Use 5 different Quickfire gadgets in one fight as Robin in Harley Quinn's Revenge

Zip Kick 5 different thugs

Complete the game on Survivor difficulty without using a Vita-chamber

The player has completed the game on the Hard difficulty setting

The player has completed the game without harvesting any Little Sisters

Successfully invent at least 100 items

Fully research the Bouncer

Purchased every slot in all four Plasmid and Tonic tracks

Acquire all upgrades for all weapons

Fully research the Nitro Splicer

The player has defeated Atlas

Fully upgrade five weapons