Here is a patch which converts the mapper in Ice Hockey from NROM to MMC3.
Ice Hockey (USA).nes - NOINTRO
CRC32: 4916D0A9
MD5: A1052168D54635930BF124440F7AFA57
SHA-1: EEA6F7F80FE966969A71209BFE9BBCDB0BBDE394
SHA-256: 3EA8EC4486EFC6C925704177505B957895171066CEA2D4D80527798B23330BD3