Klax/YMMV


 * Porting Disaster: The ports to the NES and Game Boy Advance have some scoring issues.
 * GBA version doesn't do the math right with certain large combinations of Klaxes;
 * GBA version misses some Klaxes when masses of same-coloured tiles meet;
 * NES and GBA versions drop the point-overrun bonus. In the original, Points Waves wanted you to meet a certain target during the level, and any points achieved beyond that were added to your bonus and thus counted double.
 * In "survive N tiles" rounds, the NES version doesn't count tiles that fall (and increase the drop meter) as "survived".