I know that the original Gradius 2 is for MSX and exist one EXCELLENT version for Sharp X68000!
The Gradius is ported for most platforms.
The F1 Spirit are for MSX but exist a version for MSX 2+.
The Golvellius and Laydock have special versions for MSX 2+ to.
Maybe the Gradius 2 for MSX2+ is a CRACKED version for Memory Mapper?
I know that most games are ported to MEGARAM or Memory Mapper both with SCC Sound chip from other games or a special SCC cart.
Do you try to copy this in a REAL MSX with disk drive?
If is a copy protected TAPE,maybe the game is TAPE only.
I NEVER see a chess game for MSX2(is this like a CHESS Board game)?
Most board games for MSX are not in the NET.
Well to you try this with WOOM or NO$MSX?
Maybe the next version of MESS work with this game!
CAN you take some screen shots of this game?
Who make this game?
At least, do you believe in the other games in my list?
By the Way, the SIM CITY IS or NOT release for MSX2?