Summer Wars, C: The Money of Soul and Possibility Control Recommendations
Mix of the reality with other world. Summer Wars is a way more real but has the same element of having an avatar and fighting with its help.
Both anime are about cyberworld. The real world is in danger because of troubles in cyberspace and the main hero want fix it.
Summer Wars is a more polished, less-money related version of C. Same deal - monsters fighting monsters in a virtual world.