Go on ahead if You want, tough I haven't deleted files from my "work" on it, I won't currently spare time for it, I need to code CoG for now since new cards came in and I pumped to my head some reasonable answers for coding problems
Also once again, I have respect to Epic and Master Alexander Brandon, I would never forgive myself such sin
I found some info that - according to source page - requirements for Jazz Jackrabbit as for PC are just this
DS has exactly that ammount of RAM and not so bad TWO CPUs (so we can divide jobs more or less)
I believe that Jazz works on 4 layers which are as follows:
#3 - Back-back-back(...)-ground as in sky, sun &c.
#2 - background as in ground, mud, back-wall
#1 - Walls and other collide stuff like platforms (collision map says hi)
#0 - Sprites - enemies, Jazz itself, cages, power ups, treasure-type items (score)
That much is more than enough for Jazz Jackrabbit to work smoothly
If we add the fact that music is made in tracker format, (MaxMod says hi) we are more than set to port the game to DS
PERIOD