[elwell]

I was excited by the appearance and sound but found it too hard to control to enjoy. Also took me a couple minutes to get started because I didn't know I had to press 'x' (and 'x' closes the tab for me with Vimium extension, even though I disabled all Vimium keys on that page).

[Moru]

It's a two player console emulating two joysticks, you can set the keys to use. Type keyconfig at the prompt.