This is a Memory Watch for Hello Kitty World. It keeps track of the balloons you collected.
SystemID NES
0688 b u 0 RAM Balloons (life)
0685 b u 0 RAM Balloons (combo)
0686 b u 0 RAM Balloons (bonus)
00C6 b u 0 RAM Balloons (stage)
00A7 b u 0 RAM Lives