this question has been asked a thousand times. the answere: yes. the programmer is the only limmition. well, that and the fact that us humans have to die some time. it is capable of making such a game, and gtf is probably more fesable than say, Final fantasy xiixixiixixiixixixi or whatever. anyway, it would be easier for you to make such a game if you were to assemble a team.
look for other threads about making cirtain types of games.
http://www.nuclearglory.com/?u=fearik = sweet as hell collision system. easy on that leather thing in your back pocket too.
the left side of my head isn't bigger, the right side is just smaller