Yep, their English is better than my Chinese, so I shouldn't complain, but surly it should be rows and columns. took me while to remember which they called a line lol. But a new set of questions, and a replacement for the 'guess the number' could be an improvement. Perhaps different or harder questions as you move up the lab 'ladder' be an improvement. Perhaps questions about different heroes and formations etc. Not sure what they would be though