While Marvel Heroes is free-to-play and you can unlock all the heroes through gameplay, that process can take quite a bit of time. Alternatively, you can pony up a bit of cash to unlock some of the heroes, but that too can be costly. Luckily, for those in the market, Gazillion has offered up a batch of Black Friday discount deals for those looking to enrich their Marvel Heroes lineup. Check them all out on the Marvel Heroes website.
Source: Marvel Heroes Black Friday Sale