This is a hack for the bootleg NES port of Contra 3 that replaces music and adds improvements/bugfixes:
-Music replaced. -Added saving weapon and bombs after level pass. -Infinite continues have been added, but max lives in options limited to 5. -Implemented interface rendering at all levels, fixed interface glitches, in 2 players mode icons matches players colors. -Level order changed, level-clone removed. -Hit points of some bosses have been changed. -Fixed bugs with the bomb (removal of the platform, bugs on the last boss when dying and use bomb at same time). -Faser normally destroys missiles. -Flying bikers can be killed. -Friendly helicopter on the level repainted green, corrected the position of the rockets sprites so that the player is not ‘hanging on the air’. -Fixes the misspelled “THEND” on the end screen. -Invulnerability is animated with palette (it didn’t animated at all before). -Bullets sprites are round.