All 50 levels were redone. Compared to the original, this has better level progression. The original felt to hard for novices from the very beginning.
Requires a "Lode Runner (U) [!]" ROM and Lunar IPS to patch it.
Demo video:
http://www.youtube.com/watch?v=MATFXETCoVw
Lode Runner (USA).nes - NOINTRO
CRC32: CD4BF911
MD5: 8E074813A094594C29C1D4C43E4BDBC5
SHA-1: EA09AEC11EFC4B42EBC644EA243C2284001FE34F
SHA-256: FAB50C2E96710CA620710E719C72BBD2EF71CD854F8B2AE1348314BC10D421D9