i think 21
complete hulk's mission.
complete hulk's mission 3 times.
collect 100 microsharps in the finale mission.
complete wolverine's mission 2 times.
Play wolverines adventure mode with captain America then you get test chamber
25gld
In the Marvel Superhero Squad Online game, you can find superhero serum by completing various missions or purchasing it from the in-game store using coins or gold. Keep playing the game, completing tasks, and checking the store regularly to acquire superhero serum for your characters.
gust complete the 8 missions.
yes the code is 246246
You buy him. he is only available for subscribers to the game
SUPERHERO