For years, the biggest challenge for any game company was to make a good Batman game. With the exception of Konami, all of them fell short, especially Acclaim, with their horrible Batman Forever (Loading screen on a cartridge?). Rocksteady and Eidos finally cracked that code with Arkham Asylum. Batman was now able to stalk his enemies, making them react in fear with each one taken down, and using classic weapons like the batarang and batclaw. It also had supporting characters like Harley Quinn and Killer Croc, a story written by Paul Dini, who wrote many episodes of the Animated Series, as well as Kevin Conroy and Mark Hamill, voicing Batman and the Joker, respectively. Two sequels followed.