I downloaded and tested. There were a few problems with the doors, you could get trapped between them but they opened afterwards so that was fine.

I got my little brother to play it, he kept getting quite excited jumping out of his seat to beat down the baddies. Lol it was funny watching him against the bosses because he got so carried away he couldn't remember the answers.

Just to make you smile for the rest of the day, he said "They should put this in schools rather than the rubbish ones we have".