klax is an excellent criminally "forgotten" game, i used to be completely addicted to it - more so than any of the other tetris knockoffs - on my Atari Lynx, back in the days!! it was a pretty simple game to get into, but if you tried messing with the warps (make huge "x" and stuff like that) then it would just be soooo intense...
no one cares now but when it was released, especialy onthe lynx - the scaling and digital voices were so perfect, bells and whistles were just so spot-on. even though stuff like that is generally regarded as useless, it was done so perfectly (man the title screen music rocked too) that the game just felt like it was a labor of love by the dev's...
don't know how it's survived the port, but well worth a look.