>and I've been waiting for Flash Boy/Deco Kid to turn up for a long time!
QtQ and I had a thread regarding the game in November 2012 Good to see the game supported/preserved years later.
I hope the Game Preservation group is able to do some future additional work in documenting (if needing to) the other DECO cassette titles currently supported in MAME and also add any other DECO cassette titles not yet supported while tapes are still readable.
The Tower and Hello Gate Ball are the two I would like to see out of the remaining cassette titles. As usual, I am glad Manhattan was added because I did get to play that game a couple times at the long ago Electronic Corral arcade (Lakewood, CA mall) back in 1981. The arcade probably had Manhattan for a couple months and it was gone by late 1981.