I've always wondered what a 3D version of the 2D side scroll-er game "Fireboy and WaterGirl" would be like. Since I'm not a programmer, this is the next best thing. This obstacle course takes place in the forest temple. Help the elemental duo navigate the dangerous temple. Don't let Fireboy touch the water, or Watergirl touch the lava, or either touch the green liquid. Use teamwork to open doors to and bridge gaps to move through the course. Collect the fire and blue gems and try to get the mega gem too! Careful not to fall off the balancing platforms and get to the end.
I think this would make a good set because there are not enough obstacle course LEGO sets and this was a fun themed set to build.