Recently I "completed" (actually no) Batman on NES (with saves)

Damn, I just wanted to play this game without saves. After some levels I decided to save only in a beginning of a level, later I saved often, especially in joker fight. Can you suggest me not hard games on NES? I didn't excited of my playthrough. Hard jumps, some enemies, uhhh

UPD: beated stage 5 (last) about in 2 hours without saves now. I'm not feeling good ;d