Thanks for playing!
Yyea, level 3 was tough. we doubled the allowed time to save the kid based on beta testing, but now I'm wondering if we are running into an nkeyrollover issue where some keyboards don't allow certain keys to press at the same time.
If you want ever want to try again, you might try jikl for Dad's controls in case those keys behave better (twin-stick controllers also work if you prefer that).