Report system is in a different interface zenox hasn't access to yet (something that was forgotten on our end when when he was moved to the moderator status).
Game reports do work and are checked daily, so do not hesitate reporting them when needed.
The reported game was dealt with.
Thanks for the improvement suggestion R0johound.
On the other hand, I'd be afraid that providing a way to report a game without even having to play it would allow some trolls to make even more reports than they are already doing.
We will work on something nonetheless.
Arcade is still in beta and to be developed/improved.