A.L.C.O.N. is the 1989 NES version of the 1986 Taito game released for the arcades. It was converted by Introware from the Amstrad CPC version and it was published by Taito and it was released in 1989 worldwide. The music and sounds from the Commodore 64 version was used instead of the Amstrad version's sound effects and were converted by Eeli Ikaheimo using the Introware C64 Conversion Sound System engine.
The gameplay is the same as the Amstrad CPC version, but the graphics are different to fit the NES' resolution.