Is this possible?

[flameboy298]

Can someone mod the game and add more levels and more bosses?

[yusnvabtch]

Yeah, probably. I've been hoping for some Avenger themed level packs

[sbarth13]

possible? probably. likely? depends. you have to remember that games are made by anywhere between 30 to 100 people, that work 40-60 hours a week doing this stuff. i think it would probably take awhile, or a concentrated group effort. the biggest problem is lack of coding knowledge. there was an attempt to get the xml2 maps into the game, but i don't know how far that went.