Hey, new here and this thread got me really excited!
My favorite game is SRB2, and it runs off the doom engine. (source code available here: https://github.com/STJr/SRB2/tree/7535bb261fa7ad2c4ab8db5991a526911875c42f/src/)
could this mean that SRB2 could be ported to the 3ds in the near future...