My god what an unforgiving game. Starts off normal, gets hard but then when you get to the Cell levels - boom, so much death.
A non-perfect jump - death
Move a pixel too far to the left - death
And to top it all off if god forbid you fall through a part of the floor that you have no way of knowing is going to fall - death/doing the bit again.
Pick the wrong door after a super hard section - back to the start of it you go!
Also need to relearn how to rip NES games...
Quick Edit: About half way through ripping the whole game, some boss sprites are pretty useless as they are just lots of parts - but will get them anyway, also: damn no one has the enemies or bosses (besides Shredder) from the first NES TMNT, what the smeg - well that's on the list now as well!