In a recent interview, AM2 shifted the blame for no online play on VF5 onto the fact it runs at 60fps. Hit the jump to read the full interview.
AM2: "Our stance toward the online gameplay has not been changed from what it was before. VF5 runs at 60fps. It would be nice if there were an environment where we could communicate with no problem at all under this condition, but unfortunately, there are various barriers for the network gaming. We wish we had an Internet environment that would convince the players who develop frame-by-frame offense and defence. The Japanese advanced players play battles that can be determined within one frame! We were interested in dowloadable extra service and PlayStore, but we decided not to adopt them this time. Instead, we decided to include every possible item we can offer since we could secure sufficient space due to the introduction of Blu-ray Disc."