You know what would be fun, side scrolling mine sweeper - the field just keeps clicking several spots to the left each N seconds revealing new tiles to click - and maybe things like "Bomb Squad" perks that let you survive bomb damage when youre wrong. and whatever other mechanics could be layered into that - if you can get some tower defence mechanism where a shooting tower comes at you and you have to enclose it in toggle spots to kill it.... but it hops a few spots every time the field clicks to the next step... making him hard to catch.
Get bomb squad points every time you get a correct answer, answer so many in a row, get a bomb suit (outlive one bomb). Get more point for the least number of unclicked tiles that expire to the scrolling of the field to the left... if you dont have any un-marked tiles moving through the filed moving click, then you get bomb squad points to next bomb suit.